#031F28
Closest named color: Rich Black (#0D1B2A). oklch(22.3% 0.038 222.8), rgb(3, 31, 40).
Aa
White text reads best on this color (17.06:1).
About this color
#031F28 is a very dark, muted teal or cyan. In OKLCH its lightness is 22%, its chroma 0.038 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.019 away. White text reads best on it, at 17.06:1.
| Hue family | Teals and cyans |
| Lightness | very dark (22%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 17.06:1 |
Values
| HEX | #031F28 |
| RGB | rgb(3, 31, 40) |
| HSL | hsl(195, 86%, 8%) |
| OKLCH | oklch(22.3% 0.038 222.8) |
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 #031F28 | 17.06:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #031F28 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #031F28 text on white | 17.06:1 | AAA | Lc 103.8 | Preferred for body text |
| #031F28 text on black | 1.23:1 | 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
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C8DDE5
oklch(88.4% 0.025 222.6)
-
Step 300
300
#A2C8D6
oklch(81% 0.045 222.3)
-
Step 400
400
#6DABC1
oklch(70.7% 0.071 222.5)
-
Step 500
500
#4096B2
oklch(63.2% 0.092 222.6)
-
Step 600
600
#127F9D
oklch(55.5% 0.099 223)
-
Step 700
700
#006B86
oklch(49% 0.091 223.1)
-
Step 800
800
#08586D
oklch(42.8% 0.076 222.1)
-
Step 900
900
#154858
oklch(37.6% 0.059 222.8)
-
Step 950
950 (this color)
#031F28
oklch(22.3% 0.038 222.8)
#031F28 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) | #1A1E28 | 0.030 |
| Deuteranopia (no green cones) | #151A28 | 0.028 |
| Tritanopia (no blue cones) | #002222 | 0.019 |
| Achromatopsia (no color) | #1C1C1C | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031F28
#031F28
oklch(22.3% 0.038 222.8)
- #2A150D
#2A150D
oklch(22.3% 0.038 41.4)
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 #031F28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.019
- Dark #1B2431 ΔE 0.041
- Jet #212529 ΔE 0.049
- Oxford Blue #1B263B ΔE 0.054
- Rich Navy #001219 ΔE 0.054
- Almost Black #070D0D ΔE 0.076
- Navy Blue #001146 ΔE 0.078
- Space Cadet #2B2D42 ΔE 0.089
Use #031F28 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.