#031B22
Closest named color: Rich Black (#0D1B2A). oklch(20.7% 0.033 219.7), rgb(3, 27, 34).
Aa
White text reads best on this color (17.74:1).
About this color
#031B22 is a very dark, muted teal or cyan. In OKLCH its lightness is 21%, its chroma 0.033 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.022 away. White text reads best on it, at 17.74:1.
| Hue family | Teals and cyans |
| Lightness | very dark (21%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.74:1 |
Values
| HEX | #031B22 |
| RGB | rgb(3, 27, 34) |
| HSL | hsl(194, 84%, 7%) |
| OKLCH | oklch(20.7% 0.033 219.7) |
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 #031B22 | 17.74:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #031B22 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #031B22 text on white | 17.74:1 | AAA | Lc 104.4 | Preferred for body text |
| #031B22 text on black | 1.18:1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE3
oklch(88.5% 0.022 218.6)
-
Step 300
300
#A5C7D2
oklch(80.8% 0.04 219.4)
-
Step 400
400
#73AABC
oklch(70.6% 0.063 220.4)
-
Step 500
500
#4B95AB
oklch(63.1% 0.08 219.7)
-
Step 600
600
#277F97
oklch(55.6% 0.088 220.1)
-
Step 700
700
#186B80
oklch(49% 0.081 219.4)
-
Step 800
800
#185768
oklch(42.6% 0.067 219.8)
-
Step 900
900
#1C4855
oklch(37.7% 0.053 220.3)
-
Step 950
950 (this color)
#031B22
oklch(20.7% 0.033 219.7)
#031B22 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) | #171A22 | 0.028 |
| Deuteranopia (no green cones) | #121722 | 0.024 |
| Tritanopia (no blue cones) | #001D1D | 0.015 |
| Achromatopsia (no color) | #181818 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031B22
#031B22
oklch(20.7% 0.033 219.7)
- #24120C
#24120C
oklch(20.6% 0.032 39.2)
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 #031B22, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.022
- Rich Navy #001219 ΔE 0.038
- Dark #1B2431 ΔE 0.055
- Almost Black #070D0D ΔE 0.060
- Jet #212529 ΔE 0.061
- Oxford Blue #1B263B ΔE 0.069
- Navy Blue #001146 ΔE 0.081
- Dark Navy #000435 ΔE 0.089
Use #031B22 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.