#03231A
Closest named color: Rich Black (#0D1B2A). oklch(23% 0.042 170.6), rgb(3, 35, 26).
Aa
White text reads best on this color (16.67:1).
About this color
#03231A is a very dark, muted teal or cyan. In OKLCH its lightness is 23%, its chroma 0.042 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.052 away. White text reads best on it, at 16.67:1.
| Hue family | Teals and cyans |
| Lightness | very dark (23%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.25:1 |
| White text | 16.67:1 |
Values
| HEX | #03231A |
| RGB | rgb(3, 35, 26) |
| HSL | hsl(163, 84%, 7%) |
| OKLCH | oklch(23% 0.042 170.6) |
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 #03231A | 16.67:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #03231A | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #03231A text on white | 16.67:1 | AAA | Lc 103.4 | Preferred for body text |
| #03231A text on black | 1.25:1 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C8DFD6
oklch(88.4% 0.027 170.2)
-
Step 300
300
#A2CBBC
oklch(80.8% 0.048 170.8)
-
Step 400
400
#6BB19A
oklch(70.7% 0.079 171)
-
Step 500
500
#3C9D81
oklch(63.1% 0.101 170.8)
-
Step 600
600
#00876A
oklch(55.5% 0.109 170.8)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D48
oklch(42.6% 0.084 170.6)
-
Step 900
900
#114D3D
oklch(37.8% 0.066 170.9)
-
Step 950
950 (this color)
#03231A
oklch(23% 0.042 170.6)
#03231A 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) | #22201A | 0.043 |
| Deuteranopia (no green cones) | #1D1D1B | 0.040 |
| Tritanopia (no blue cones) | #002320 | 0.011 |
| Achromatopsia (no color) | #1E1E1E | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03231A
#03231A
oklch(23% 0.042 170.6)
- #2B141F
#2B141F
oklch(22.9% 0.041 350.8)
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 #03231A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.052
- Jet #212529 ΔE 0.052
- Dark #1B2431 ΔE 0.056
- Dark Forest Green #002D04 ΔE 0.057
- Very Dark Green #062E03 ΔE 0.061
- Rich Navy #001219 ΔE 0.069
- Oxford Blue #1B263B ΔE 0.072
- Dark Brown #341C02 ΔE 0.080
Use #03231A 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.