#031E1C
Closest named color: Rich Black (#0D1B2A). oklch(21.4% 0.033 188.2), rgb(3, 30, 28).
Aa
White text reads best on this color (17.40:1).
About this color
#031E1C is a very dark, muted teal or cyan. In OKLCH its lightness is 21%, its chroma 0.033 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.036 away. White text reads best on it, at 17.40:1.
| Hue family | Teals and cyans |
| Lightness | very dark (21%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.20:1 |
| White text | 17.40:1 |
Values
| HEX | #031E1C |
| RGB | rgb(3, 30, 28) |
| HSL | hsl(176, 82%, 6%) |
| OKLCH | oklch(21.4% 0.033 188.2) |
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 #031E1C | 17.40:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #031E1C | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #031E1C text on white | 17.40:1 | AAA | Lc 104.1 | Preferred for body text |
| #031E1C text on black | 1.20:1 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDC
oklch(88.5% 0.022 189.5)
-
Step 300
300
#A4C9C5
oklch(80.8% 0.04 188.3)
-
Step 400
400
#71AEA8
oklch(70.8% 0.064 188)
-
Step 500
500
#479993
oklch(63% 0.08 188.9)
-
Step 600
600
#20847D
oklch(55.7% 0.088 187.9)
-
Step 700
700
#0E6F69
oklch(49% 0.082 188.1)
-
Step 800
800
#135B56
oklch(42.8% 0.068 188)
-
Step 900
900
#194B47
oklch(37.8% 0.053 187.8)
-
Step 950
950 (this color)
#031E1C
oklch(21.4% 0.033 188.2)
#031E1C 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) | #1C1C1C | 0.036 |
| Deuteranopia (no green cones) | #18191C | 0.033 |
| Tritanopia (no blue cones) | #001F1D | 0.004 |
| Achromatopsia (no color) | #1A1A1A | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031E1C
#031E1C
oklch(21.4% 0.033 188.2)
- #261216
#261216
oklch(21.2% 0.034 7.4)
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 #031E1C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.036
- Rich Navy #001219 ΔE 0.049
- Dark #1B2431 ΔE 0.057
- Jet #212529 ΔE 0.057
- Almost Black #070D0D ΔE 0.066
- Oxford Blue #1B263B ΔE 0.072
- Dark Forest Green #002D04 ΔE 0.077
- Very Dark Green #062E03 ΔE 0.081
Use #031E1C 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.