#312938
Closest named color: Space Cadet (#2B2D42). oklch(29.6% 0.029 308.8), rgb(49, 41, 56).
Aa
White text reads best on this color (13.95:1).
About this color
#312938 is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Space Cadet (#2B2D42), ΔE 0.021 away. White text reads best on it, at 13.95:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.50:1 |
| White text | 13.95:1 |
Values
| HEX | #312938 |
| RGB | rgb(49, 41, 56) |
| HSL | hsl(272, 15%, 19%) |
| OKLCH | oklch(29.6% 0.029 308.8) |
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 #312938 | 13.95:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #312938 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #312938 text on white | 13.95:1 | AAA | Lc 100.6 | Preferred for body text |
| #312938 text on black | 1.50:1 | 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 950.
-
Step 50
50
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#ECE8EF
oklch(93.6% 0.01 311.2)
-
Step 200
200
#DDD6E3
oklch(88.5% 0.019 309.8)
-
Step 300
300
#C7BBD2
oklch(80.9% 0.034 308.9)
-
Step 400
400
#AA98BB
oklch(70.7% 0.054 308.2)
-
Step 500
500
#967EAA
oklch(63.1% 0.07 309.2)
-
Step 600
600
#806795
oklch(55.6% 0.075 308.9)
-
Step 700
700
#6C567F
oklch(49.1% 0.069 308.5)
-
Step 800
800
#584668
oklch(42.7% 0.059 308.2)
-
Step 900
900
#493B54
oklch(37.7% 0.045 309.7)
-
Step 950
950 (this color)
#312938
oklch(29.6% 0.029 308.8)
#312938 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) | #272C39 | 0.019 |
| Deuteranopia (no green cones) | #282C38 | 0.018 |
| Tritanopia (no blue cones) | #302B2E | 0.022 |
| Achromatopsia (no color) | #2C2C2C | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312938
#312938
oklch(29.6% 0.029 308.8)
- #283020
#283020
oklch(29.6% 0.03 129.7)
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 #312938, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.021
- Gunmetal #293241 ΔE 0.031
- Oxford Blue #1B263B ΔE 0.041
- Jet #212529 ΔE 0.043
- Dark #1B2431 ΔE 0.045
- Onyx #343A40 ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.063
Use #312938 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.