#312223
Closest named color: Jet (#212529). oklch(27.1% 0.023 14.3), rgb(49, 34, 35).
Aa
White text reads best on this color (15.17:1).
About this color
#312223 is a dark close to neutral grey. In OKLCH its lightness is 27%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.031 away. White text reads best on it, at 15.17:1.
| Hue family | Neutrals |
| Lightness | dark (27%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.38:1 |
| White text | 15.17:1 |
Values
| HEX | #312223 |
| RGB | rgb(49, 34, 35) |
| HSL | hsl(356, 18%, 16%) |
| OKLCH | oklch(27.1% 0.023 14.3) |
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 #312223 | 15.17:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #312223 | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #312223 text on white | 15.17:1 | AAA | Lc 102.1 | Preferred for body text |
| #312223 text on black | 1.38:1 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EFE8E8
oklch(93.6% 0.008 17.3)
-
Step 200
200
#E3D5D6
oklch(88.5% 0.016 12.5)
-
Step 300
300
#D2BABB
oklch(81% 0.027 14.9)
-
Step 400
400
#BA9698
oklch(70.7% 0.043 14.5)
-
Step 500
500
#A97C7F
oklch(63.2% 0.056 14.3)
-
Step 600
600
#946568
oklch(55.7% 0.061 15)
-
Step 700
700
#7E5357
oklch(49.1% 0.058 13.3)
-
Step 800
800
#664447
oklch(42.6% 0.047 13.4)
-
Step 900
900
#533A3C
oklch(37.7% 0.036 13.6)
-
Step 950
950 (this color)
#312223
oklch(27.1% 0.023 14.3)
#312223 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) | #252423 | 0.024 |
| Deuteranopia (no green cones) | #282723 | 0.023 |
| Tritanopia (no blue cones) | #342122 | 0.007 |
| Achromatopsia (no color) | #262626 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312223
#312223
oklch(27.1% 0.023 14.3)
- #192A2A
#192A2A
oklch(27% 0.023 195.9)
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 #312223, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.031
- Dark #1B2431 ΔE 0.045
- Dark Brown #341C02 ΔE 0.046
- Chocolate Brown #411900 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.055
- Space Cadet #2B2D42 ΔE 0.057
- Gunmetal #293241 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.074
Use #312223 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.