#31354D
Closest named color: Gunmetal (#293241). oklch(33.6% 0.043 276.6), rgb(49, 53, 77).
Aa
White text reads best on this color (12.02:1).
About this color
#31354D is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.043 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.026 away. White text reads best on it, at 12.02:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.74:1 |
| White text | 12.02:1 |
Values
| HEX | #31354D |
| RGB | rgb(49, 53, 77) |
| HSL | hsl(231, 22%, 25%) |
| OKLCH | oklch(33.6% 0.043 276.6) |
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 #31354D | 12.02:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #31354D | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #31354D text on white | 12.02:1 | AAA | Lc 97.5 | Preferred for body text |
| #31354D text on black | 1.74:1 | 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
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D6D8E5
oklch(88.5% 0.018 279)
-
Step 300
300
#BBBFD6
oklch(80.9% 0.033 277.8)
-
Step 400
400
#989EC1
oklch(70.7% 0.052 277.4)
-
Step 500
500
#7F86B1
oklch(63% 0.065 277.2)
-
Step 600
600
#68709D
oklch(55.7% 0.071 276.1)
-
Step 700
700
#575D86
oklch(49% 0.066 277.3)
-
Step 800
800
#474C6D
oklch(42.6% 0.055 277.2)
-
Step 900
900 (this color)
#31354D
oklch(33.6% 0.043 276.6)
-
Step 950
950
#232534
oklch(26.9% 0.028 278.4)
#31354D 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) | #2E384E | 0.010 |
| Deuteranopia (no green cones) | #2C354C | 0.008 |
| Tritanopia (no blue cones) | #293A3D | 0.040 |
| Achromatopsia (no color) | #363636 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31354D
#31354D
oklch(33.6% 0.043 276.6)
- #3D371C
#3D371C
oklch(33.6% 0.043 97.1)
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 #31354D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.026
- Dark Blue Grey #1F3B4D ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.032
- Prussian Blue #1D3557 ΔE 0.032
- Onyx #343A40 ΔE 0.033
- Midnight Green #073B4C ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.053
Use #31354D 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.