#312833
Closest named color: Space Cadet (#2B2D42). oklch(29.1% 0.023 320.1), rgb(49, 40, 51).
Aa
White text reads best on this color (14.17:1).
About this color
#312833 is a dark close to neutral grey. In OKLCH its lightness is 29%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Space Cadet (#2B2D42), ΔE 0.029 away. White text reads best on it, at 14.17:1.
| Hue family | Neutrals |
| Lightness | dark (29%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.48:1 |
| White text | 14.17:1 |
Values
| HEX | #312833 |
| RGB | rgb(49, 40, 51) |
| HSL | hsl(289, 12%, 18%) |
| OKLCH | oklch(29.1% 0.023 320.1) |
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 #312833 | 14.17:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #312833 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #312833 text on white | 14.17:1 | AAA | Lc 100.9 | Preferred for body text |
| #312833 text on black | 1.48:1 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#ECE8ED
oklch(93.6% 0.008 319.4)
-
Step 200
200
#DED6DF
oklch(88.5% 0.015 322.3)
-
Step 300
300
#C9BBCC
oklch(80.9% 0.028 320.3)
-
Step 400
400
#AD98B2
oklch(70.7% 0.044 319.7)
-
Step 500
500
#997F9F
oklch(63.2% 0.056 319.9)
-
Step 600
600
#84688A
oklch(55.7% 0.061 320.3)
-
Step 700
700
#6F5675
oklch(49% 0.057 319.7)
-
Step 800
800
#5B475F
oklch(42.8% 0.046 320.7)
-
Step 900
900
#4B3B4E
oklch(37.7% 0.038 321)
-
Step 950
950 (this color)
#312833
oklch(29.1% 0.023 320.1)
#312833 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) | #272A33 | 0.019 |
| Deuteranopia (no green cones) | #292B33 | 0.017 |
| Tritanopia (no blue cones) | #31292C | 0.014 |
| Achromatopsia (no color) | #2B2B2B | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312833
#312833
oklch(29.1% 0.023 320.1)
- #262F24
#262F24
oklch(29.3% 0.023 140)
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 #312833, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.029
- Gunmetal #293241 ΔE 0.036
- Jet #212529 ΔE 0.037
- Oxford Blue #1B263B ΔE 0.042
- Dark #1B2431 ΔE 0.043
- Onyx #343A40 ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.068
- Prussian Blue #1D3557 ΔE 0.071
Use #312833 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.