#28344C
Closest named color: Gunmetal (#293241). oklch(32.6% 0.046 263.6), rgb(40, 52, 76).
Aa
White text reads best on this color (12.45:1).
About this color
#28344C is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.046 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.019 away. White text reads best on it, at 12.45:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.68:1 |
| White text | 12.45:1 |
Values
| HEX | #28344C |
| RGB | rgb(40, 52, 76) |
| HSL | hsl(220, 31%, 23%) |
| OKLCH | oklch(32.6% 0.046 263.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #28344C | 12.45:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #28344C | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #28344C text on white | 12.45:1 | AAA | Lc 98.3 | Preferred for body text |
| #28344C text on black | 1.68:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B5C1D8
oklch(80.9% 0.035 263.5)
-
Step 400
400
#8FA1C4
oklch(70.7% 0.055 263.6)
-
Step 500
500
#7389B5
oklch(63% 0.071 263.9)
-
Step 600
600
#5C73A1
oklch(55.6% 0.077 263.6)
-
Step 700
700
#4C6089
oklch(49% 0.071 264)
-
Step 800
800
#3E4F70
oklch(42.8% 0.059 263.1)
-
Step 900
900 (this color)
#28344C
oklch(32.6% 0.046 263.6)
-
Step 950
950
#1F2635
oklch(26.9% 0.03 265.1)
#28344C with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #2B364D | 0.008 |
| Deuteranopia (no green cones) | #28324B | 0.006 |
| Tritanopia (no blue cones) | #1B393C | 0.042 |
| Achromatopsia (no color) | #343434 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28344C
#28344C
oklch(32.6% 0.046 263.6)
- #3F3217
#3F3217
oklch(32.5% 0.046 84.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #28344C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.019
- Prussian Blue #1D3557 ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.025
- Midnight Green #073B4C ΔE 0.036
- Onyx #343A40 ΔE 0.039
- Oxford Blue #1B263B ΔE 0.057
- Marine #042E60 ΔE 0.057
Use #28344C in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.