#051E22
Closest named color: Rich Black (#0D1B2A). oklch(21.8% 0.032 209.5), rgb(5, 30, 34).
Aa
White text reads best on this color (17.28:1).
About this color
#051E22 is a very dark, muted teal or cyan. In OKLCH its lightness is 22%, its chroma 0.032 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.024 away. White text reads best on it, at 17.28:1.
| Hue family | Teals and cyans |
| Lightness | very dark (22%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.28:1 |
Values
| HEX | #051E22 |
| RGB | rgb(5, 30, 34) |
| HSL | hsl(188, 74%, 8%) |
| OKLCH | oklch(21.8% 0.032 209.5) |
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 #051E22 | 17.28:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #051E22 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #051E22 text on white | 17.28:1 | AAA | Lc 104.0 | Preferred for body text |
| #051E22 text on black | 1.21:1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CADDE1
oklch(88.5% 0.021 211.8)
-
Step 300
300
#A6C8CE
oklch(81% 0.037 209.5)
-
Step 400
400
#73ABB5
oklch(70.6% 0.06 209.9)
-
Step 500
500
#4B96A3
oklch(63% 0.077 210.2)
-
Step 600
600
#28808E
oklch(55.5% 0.083 210.2)
-
Step 700
700
#196C79
oklch(49% 0.077 210.6)
-
Step 800
800
#185862
oklch(42.6% 0.064 210)
-
Step 900
900
#1C4950
oklch(37.7% 0.05 209.1)
-
Step 950
950 (this color)
#051E22
oklch(21.8% 0.032 209.5)
#051E22 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) | #1A1D22 | 0.029 |
| Deuteranopia (no green cones) | #161922 | 0.028 |
| Tritanopia (no blue cones) | #00201F | 0.013 |
| Achromatopsia (no color) | #1B1B1B | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051E22
#051E22
oklch(21.8% 0.032 209.5)
- #271411
#271411
oklch(21.7% 0.032 29.6)
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 #051E22, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.024
- Dark #1B2431 ΔE 0.047
- Rich Navy #001219 ΔE 0.049
- Jet #212529 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.062
- Almost Black #070D0D ΔE 0.069
- Dark Forest Green #002D04 ΔE 0.086
- Navy Blue #001146 ΔE 0.087
Use #051E22 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.