#28344B
Closest named color: Gunmetal (#293241). oklch(32.5% 0.044 262.9), rgb(40, 52, 75).
Aa
White text reads best on this color (12.47:1).
About this color
#28344B is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.044 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.018 away. White text reads best on it, at 12.47:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.68:1 |
| White text | 12.47:1 |
Values
| HEX | #28344B |
| RGB | rgb(40, 52, 75) |
| HSL | hsl(219, 30%, 23%) |
| OKLCH | oklch(32.5% 0.044 262.9) |
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 #28344B | 12.47:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #28344B | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #28344B text on white | 12.47:1 | AAA | Lc 98.3 | Preferred for body text |
| #28344B 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B5C1D7
oklch(80.9% 0.034 262.7)
-
Step 400
400
#8FA1C3
oklch(70.7% 0.054 263.1)
-
Step 500
500
#748AB3
oklch(63.2% 0.067 262.6)
-
Step 600
600
#5C739F
oklch(55.5% 0.074 262.9)
-
Step 700
700
#4C6088
oklch(49% 0.069 263.6)
-
Step 800
800
#3E4F6E
oklch(42.7% 0.056 262.1)
-
Step 900
900 (this color)
#28344B
oklch(32.5% 0.044 262.9)
-
Step 950
950
#1F2634
oklch(26.8% 0.028 263.9)
#28344B 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) | #2C364C | 0.009 |
| Deuteranopia (no green cones) | #28324A | 0.006 |
| Tritanopia (no blue cones) | #1C393C | 0.040 |
| Achromatopsia (no color) | #343434 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28344B
#28344B
oklch(32.5% 0.044 262.9)
- #3F3218
#3F3218
oklch(32.5% 0.044 83.3)
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 #28344B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.018
- Dark Blue Grey #1F3B4D ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.024
- Midnight Green #073B4C ΔE 0.036
- Onyx #343A40 ΔE 0.037
- Oxford Blue #1B263B ΔE 0.056
- Charcoal #264653 ΔE 0.057
Use #28344B 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.