#031E28
Closest named color: Rich Black (#0D1B2A). oklch(22% 0.038 226), rgb(3, 30, 40).
Aa
White text reads best on this color (17.20:1).
About this color
#031E28 is a very dark, muted teal or cyan. In OKLCH its lightness is 22%, its chroma 0.038 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.016 away. White text reads best on it, at 17.20:1.
| Hue family | Teals and cyans |
| Lightness | very dark (22%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.20:1 |
Values
| HEX | #031E28 |
| RGB | rgb(3, 30, 40) |
| HSL | hsl(196, 86%, 8%) |
| OKLCH | oklch(22% 0.038 226) |
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 #031E28 | 17.20:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #031E28 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #031E28 text on white | 17.20:1 | AAA | Lc 103.9 | Preferred for body text |
| #031E28 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE6
oklch(88.5% 0.025 226.5)
-
Step 300
300
#A3C7D7
oklch(80.9% 0.045 226.7)
-
Step 400
400
#6EAAC3
oklch(70.6% 0.072 226.3)
-
Step 500
500
#4295B4
oklch(63.1% 0.092 225.7)
-
Step 600
600
#187FA0
oklch(55.7% 0.1 225.8)
-
Step 700
700
#026B89
oklch(49.2% 0.093 225.8)
-
Step 800
800
#0D576F
oklch(42.7% 0.077 226.1)
-
Step 900
900
#16485A
oklch(37.7% 0.06 225.9)
-
Step 950
950 (this color)
#031E28
oklch(22% 0.038 226)
#031E28 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) | #191D29 | 0.030 |
| Deuteranopia (no green cones) | #131928 | 0.026 |
| Tritanopia (no blue cones) | #002121 | 0.021 |
| Achromatopsia (no color) | #1B1B1B | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031E28
#031E28
oklch(22% 0.038 226)
- #29150B
#29150B
oklch(22.1% 0.037 46.7)
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 #031E28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.016
- Dark #1B2431 ΔE 0.043
- Rich Navy #001219 ΔE 0.051
- Jet #212529 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.056
- Almost Black #070D0D ΔE 0.074
- Navy Blue #001146 ΔE 0.076
- Space Cadet #2B2D42 ΔE 0.092
Use #031E28 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.