diff --git a/kitty/border_vertex.glsl b/kitty/border_vertex.glsl
index 69762df95..972bd2b8d 100644
--- a/kitty/border_vertex.glsl
+++ b/kitty/border_vertex.glsl
@@ -3,6 +3,7 @@ uniform uvec2 viewport;
 uniform uint colors[9];
 uniform float background_opacity;
 uniform float tint_opacity, tint_premult;
+uniform float gamma_lut[256];
 in vec4 rect;  // left, top, right, bottom
 in uint rect_color;
 out vec4 color;
@@ -22,7 +23,7 @@ const uvec2 pos_map[] = uvec2[4](
 );
 
 float to_color(uint c) {
-    return float(c & FF) / 255.0;
+    return gamma_lut[c & FF];
 }
 
 float is_integer_value(uint c, float x) {
diff --git a/kitty/shaders.c b/kitty/shaders.c
index 76a9a90e8..f8f27cfc6 100644
--- a/kitty/shaders.c
+++ b/kitty/shaders.c
@@ -973,7 +973,7 @@ draw_cells(ssize_t vao_idx, ssize_t gvao_idx, const ScreenRenderData *srd, float
 // }}}
 
 // Borders {{{
-enum BorderUniforms { BORDER_viewport, BORDER_background_opacity, BORDER_tint_opacity, BORDER_tint_premult, BORDER_colors, NUM_BORDER_UNIFORMS };
+enum BorderUniforms { BORDER_viewport, BORDER_background_opacity, BORDER_tint_opacity, BORDER_tint_premult, BORDER_colors, BORDER_gamma_lut, NUM_BORDER_UNIFORMS };
 static GLint border_uniform_locations[NUM_BORDER_UNIFORMS] = {0};
 
 static void
@@ -984,6 +984,7 @@ init_borders_program(void) {
         SET_LOC(tint_opacity)
         SET_LOC(tint_premult)
         SET_LOC(colors)
+        SET_LOC(gamma_lut)
 #undef SET_LOC
 }
 
@@ -1035,6 +1036,7 @@ draw_borders(ssize_t vao_idx, unsigned int num_border_rects, BorderRect *rect_bu
         glUniform1f(border_uniform_locations[BORDER_tint_opacity], tint_opacity);
         glUniform1f(border_uniform_locations[BORDER_tint_premult], tint_premult);
         glUniform2ui(border_uniform_locations[BORDER_viewport], viewport_width, viewport_height);
+        glUniform1fv(border_uniform_locations[BORDER_gamma_lut], 256, srgb_lut);
         if (has_bgimage(w)) {
             if (w->is_semi_transparent) { BLEND_PREMULT; }
             else { BLEND_ONTO_OPAQUE_WITH_OPAQUE_OUTPUT; }