#031E1E
Closest named color: Rich Black (#0D1B2A). oklch(21.5% 0.033 195), rgb(3, 30, 30).
Aa
White text reads best on this color (17.37:1).
About this color
#031E1E is a very dark, muted teal or cyan. In OKLCH its lightness is 21%, its chroma 0.033 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.033 away. White text reads best on it, at 17.37:1.
| 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 | 17.37:1 |
Values
| HEX | #031E1E |
| RGB | rgb(3, 30, 30) |
| HSL | hsl(180, 82%, 6%) |
| OKLCH | oklch(21.5% 0.033 195) |
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 #031E1E | 17.37:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #031E1E | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #031E1E text on white | 17.37:1 | AAA | Lc 104.1 | Preferred for body text |
| #031E1E 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
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADEDD
oklch(88.5% 0.021 193.1)
-
Step 300
300
#A4C9C8
oklch(80.9% 0.039 194.4)
-
Step 400
400
#71ADAD
oklch(70.7% 0.062 195.8)
-
Step 500
500
#469998
oklch(63.2% 0.08 194.2)
-
Step 600
600
#1F8383
oklch(55.6% 0.087 194.9)
-
Step 700
700
#0D6F6F
oklch(49.2% 0.081 194.8)
-
Step 800
800
#125A5A
oklch(42.6% 0.067 194.9)
-
Step 900
900
#194A4A
oklch(37.6% 0.052 195.2)
-
Step 950
950 (this color)
#031E1E
oklch(21.5% 0.033 195)
#031E1E 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) | #1B1C1E | 0.034 |
| Deuteranopia (no green cones) | #17191E | 0.032 |
| Tritanopia (no blue cones) | #001F1E | 0.005 |
| Achromatopsia (no color) | #1A1A1A | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031E1E
#031E1E
oklch(21.5% 0.033 195)
- #271314
#271314
oklch(21.6% 0.033 17)
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 #031E1E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.033
- Rich Navy #001219 ΔE 0.048
- Dark #1B2431 ΔE 0.054
- Jet #212529 ΔE 0.055
- Almost Black #070D0D ΔE 0.066
- Oxford Blue #1B263B ΔE 0.069
- Dark Forest Green #002D04 ΔE 0.080
- Very Dark Green #062E03 ΔE 0.084
Use #031E1E 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.