#31344B
Closest named color: Gunmetal (#293241). oklch(33.3% 0.041 278.2), rgb(49, 52, 75).
Aa
White text reads best on this color (12.18:1).
About this color
#31344B is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.041 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.023 away. White text reads best on it, at 12.18:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.72:1 |
| White text | 12.18:1 |
Values
| HEX | #31344B |
| RGB | rgb(49, 52, 75) |
| HSL | hsl(233, 21%, 24%) |
| OKLCH | oklch(33.3% 0.041 278.2) |
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 #31344B | 12.18:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #31344B | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #31344B text on white | 12.18:1 | AAA | Lc 97.8 | Preferred for body text |
| #31344B text on black | 1.72:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D6D8E5
oklch(88.5% 0.018 279)
-
Step 300
300
#BCBFD5
oklch(80.9% 0.031 279.5)
-
Step 400
400
#999EBF
oklch(70.7% 0.048 278.3)
-
Step 500
500
#8086AF
oklch(63% 0.062 278)
-
Step 600
600
#6A709B
oklch(55.7% 0.067 277.8)
-
Step 700
700
#585D85
oklch(49.1% 0.064 278.3)
-
Step 800
800
#484C6C
oklch(42.7% 0.053 278.4)
-
Step 900
900 (this color)
#31344B
oklch(33.3% 0.041 278.2)
-
Step 950
950
#232533
oklch(26.9% 0.026 278.2)
#31344B 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) | #2D364C | 0.008 |
| Deuteranopia (no green cones) | #2C354A | 0.009 |
| Tritanopia (no blue cones) | #2A383C | 0.036 |
| Achromatopsia (no color) | #353535 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31344B
#31344B
oklch(33.3% 0.041 278.2)
- #3B361D
#3B361D
oklch(33.1% 0.04 98.3)
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 #31344B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.023
- Space Cadet #2B2D42 ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.031
- Onyx #343A40 ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.033
- Midnight Green #073B4C ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.054
- Charcoal #264653 ΔE 0.057
Use #31344B 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.