#12231A
Closest named color: Jet (#212529). oklch(23.8% 0.029 160), rgb(18, 35, 26).
Aa
White text reads best on this color (16.39:1).
About this color
#12231A is a very dark close to neutral grey. In OKLCH its lightness is 24%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.039 away. White text reads best on it, at 16.39:1.
| Hue family | Neutrals |
| Lightness | very dark (24%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.28:1 |
| White text | 16.39:1 |
Values
| HEX | #12231A |
| RGB | rgb(18, 35, 26) |
| HSL | hsl(148, 32%, 10%) |
| OKLCH | oklch(23.8% 0.029 160) |
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 #12231A | 16.39:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #12231A | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #12231A text on white | 16.39:1 | AAA | Lc 103.3 | Preferred for body text |
| #12231A text on black | 1.28:1 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE7
oklch(93.6% 0.01 155.1)
-
Step 200
200
#CFDDD5
oklch(88.5% 0.019 161.1)
-
Step 300
300
#AFC8B9
oklch(81% 0.034 159.2)
-
Step 400
400
#83AC95
oklch(70.8% 0.056 160)
-
Step 500
500
#63977B
oklch(63.1% 0.07 160)
-
Step 600
600
#498164
oklch(55.6% 0.075 160)
-
Step 700
700
#396D53
oklch(49.1% 0.071 160.5)
-
Step 800
800
#305944
oklch(42.7% 0.059 160.2)
-
Step 900
900
#2B4939
oklch(37.6% 0.046 159.9)
-
Step 950
950 (this color)
#12231A
oklch(23.8% 0.029 160)
#12231A 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) | #23211A | 0.028 |
| Deuteranopia (no green cones) | #201F1B | 0.027 |
| Tritanopia (no blue cones) | #0E2320 | 0.012 |
| Achromatopsia (no color) | #1F1F1F | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12231A
#12231A
oklch(23.8% 0.029 160)
- #281923
#281923
oklch(23.7% 0.03 339.6)
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 #12231A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.039
- Dark #1B2431 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.050
- Dark Forest Green #002D04 ΔE 0.059
- Very Dark Green #062E03 ΔE 0.061
- Oxford Blue #1B263B ΔE 0.064
- Dark Brown #341C02 ΔE 0.066
- Rich Navy #001219 ΔE 0.076
Use #12231A 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.