#312839
Closest named color: Space Cadet (#2B2D42). oklch(29.4% 0.033 308.5), rgb(49, 40, 57).
Aa
White text reads best on this color (14.06:1).
About this color
#312839 is a dark, muted purple. In OKLCH its lightness is 29%, its chroma 0.033 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.021 away. White text reads best on it, at 14.06:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.49:1 |
| White text | 14.06:1 |
Values
| HEX | #312839 |
| RGB | rgb(49, 40, 57) |
| HSL | hsl(272, 18%, 19%) |
| OKLCH | oklch(29.4% 0.033 308.5) |
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 #312839 | 14.06:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #312839 | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #312839 text on white | 14.06:1 | AAA | Lc 100.7 | Preferred for body text |
| #312839 text on black | 1.49:1 | 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
#F6F4F8
oklch(97% 0.006 308.4)
-
Step 100
100
#ECE8F0
oklch(93.6% 0.011 308.3)
-
Step 200
200
#DDD6E4
oklch(88.6% 0.02 308.2)
-
Step 300
300
#C8BAD4
oklch(80.9% 0.039 309.5)
-
Step 400
400
#AC97BF
oklch(70.8% 0.062 308.6)
-
Step 500
500
#977DAE
oklch(63.2% 0.078 308.4)
-
Step 600
600
#82659A
oklch(55.6% 0.087 308.8)
-
Step 700
700
#6E5483
oklch(49.1% 0.079 309)
-
Step 800
800
#59456B
oklch(42.7% 0.066 307.9)
-
Step 900
900
#493A57
oklch(37.7% 0.052 307.7)
-
Step 950
950 (this color)
#312839
oklch(29.4% 0.033 308.5)
#312839 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) | #252B3A | 0.022 |
| Deuteranopia (no green cones) | #272C38 | 0.022 |
| Tritanopia (no blue cones) | #302A2E | 0.024 |
| Achromatopsia (no color) | #2B2B2B | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312839
#312839
oklch(29.4% 0.033 308.5)
- #27301E
#27301E
oklch(29.5% 0.034 129.8)
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 #312839, 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 0.033
- Oxford Blue #1B263B ΔE 0.040
- Jet #212529 ΔE 0.043
- Dark #1B2431 ΔE 0.045
- Onyx #343A40 ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.065
Use #312839 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.