#031F25
Closest named color: Rich Black (#0D1B2A). oklch(22.1% 0.035 214.3), rgb(3, 31, 37).
Aa
White text reads best on this color (17.12:1).
About this color
#031F25 is a very dark, muted teal or cyan. In OKLCH its lightness is 22%, its chroma 0.035 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.023 away. White text reads best on it, at 17.12:1.
| Hue family | Teals and cyans |
| Lightness | very dark (22%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.12:1 |
Values
| HEX | #031F25 |
| RGB | rgb(3, 31, 37) |
| HSL | hsl(191, 85%, 8%) |
| OKLCH | oklch(22.1% 0.035 214.3) |
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 #031F25 | 17.12:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #031F25 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #031F25 text on white | 17.12:1 | AAA | Lc 103.9 | Preferred for body text |
| #031F25 text on black | 1.22:1 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C9DDE3
oklch(88.4% 0.023 217.7)
-
Step 300
300
#A3C8D1
oklch(80.9% 0.041 214.2)
-
Step 400
400
#6EACBA
oklch(70.7% 0.067 213.6)
-
Step 500
500
#4197A9
oklch(63.1% 0.086 213.6)
-
Step 600
600
#158195
oklch(55.7% 0.093 214.4)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#0B5967
oklch(42.8% 0.072 213.8)
-
Step 900
900
#164954
oklch(37.7% 0.056 214.9)
-
Step 950
950 (this color)
#031F25
oklch(22.1% 0.035 214.3)
#031F25 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) | #1B1E25 | 0.032 |
| Deuteranopia (no green cones) | #161A25 | 0.029 |
| Tritanopia (no blue cones) | #002121 | 0.013 |
| Achromatopsia (no color) | #1C1C1C | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031F25
#031F25
oklch(22.1% 0.035 214.3)
- #291510
#291510
oklch(22.2% 0.034 34.8)
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 #031F25, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.023
- Dark #1B2431 ΔE 0.044
- Jet #212529 ΔE 0.049
- Rich Navy #001219 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.058
- Almost Black #070D0D ΔE 0.074
- Navy Blue #001146 ΔE 0.084
- Dark Forest Green #002D04 ΔE 0.087
Use #031F25 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.