#31344F
Closest named color: Gunmetal (#293241). oklch(33.5% 0.048 278.6), rgb(49, 52, 79).
Aa
White text reads best on this color (12.10:1).
About this color
#31344F is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.048 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.029 away. White text reads best on it, at 12.10:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.73:1 |
| White text | 12.10:1 |
Values
| HEX | #31344F |
| RGB | rgb(49, 52, 79) |
| HSL | hsl(234, 23%, 25%) |
| OKLCH | oklch(33.5% 0.048 278.6) |
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 #31344F | 12.10:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #31344F | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #31344F text on white | 12.10:1 | AAA | Lc 97.7 | Preferred for body text |
| #31344F text on black | 1.73:1 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E7
oklch(88.5% 0.021 279.9)
-
Step 300
300
#BBBFD8
oklch(80.9% 0.035 278.4)
-
Step 400
400
#989EC5
oklch(70.8% 0.057 278)
-
Step 500
500
#7F85B6
oklch(63.1% 0.074 278.6)
-
Step 600
600
#696EA2
oklch(55.5% 0.081 279.2)
-
Step 700
700
#575C8A
oklch(49% 0.074 278.5)
-
Step 800
800
#474B70
oklch(42.6% 0.062 278.7)
-
Step 900
900 (this color)
#31344F
oklch(33.5% 0.048 278.6)
-
Step 950
950
#232535
oklch(27% 0.03 278.7)
#31344F 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) | #2C3750 | 0.011 |
| Deuteranopia (no green cones) | #2A354E | 0.011 |
| Tritanopia (no blue cones) | #29393E | 0.041 |
| Achromatopsia (no color) | #363636 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31344F
#31344F
oklch(33.5% 0.048 278.6)
- #3D3718
#3D3718
oklch(33.5% 0.048 98.6)
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 #31344F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.030
- Space Cadet #2B2D42 ΔE 0.031
- Dark Blue Grey #1F3B4D ΔE 0.033
- Onyx #343A40 ΔE 0.038
- Midnight Green #073B4C ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.056
- Charcoal #264653 ΔE 0.057
Use #31344F 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.