#051E27
Closest named color: Rich Black (#0D1B2A). oklch(22% 0.035 225.1), rgb(5, 30, 39).
Aa
White text reads best on this color (17.19:1).
About this color
#051E27 is a very dark, muted teal or cyan. In OKLCH its lightness is 22%, its chroma 0.035 and its hue 225°. 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 17.19:1.
| 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 | 17.19:1 |
Values
| HEX | #051E27 |
| RGB | rgb(5, 30, 39) |
| HSL | hsl(196, 77%, 9%) |
| OKLCH | oklch(22% 0.035 225.1) |
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 #051E27 | 17.19:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #051E27 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #051E27 text on white | 17.19:1 | AAA | Lc 103.9 | Preferred for body text |
| #051E27 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADDE5
oklch(88.6% 0.023 224.9)
-
Step 300
300
#A5C7D5
oklch(80.9% 0.041 224.8)
-
Step 400
400
#72AAC0
oklch(70.7% 0.067 224.6)
-
Step 500
500
#4994B0
oklch(63% 0.085 225.1)
-
Step 600
600
#257E9C
oklch(55.5% 0.093 225.2)
-
Step 700
700
#156A86
oklch(49% 0.087 226)
-
Step 800
800
#16576C
oklch(42.7% 0.071 224.3)
-
Step 900
900
#1B4858
oklch(37.8% 0.056 224.7)
-
Step 950
950 (this color)
#051E27
oklch(22% 0.035 225.1)
#051E27 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) | #191D27 | 0.027 |
| Deuteranopia (no green cones) | #141A27 | 0.023 |
| Tritanopia (no blue cones) | #002121 | 0.020 |
| Achromatopsia (no color) | #1B1B1B | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051E27
#051E27
oklch(22% 0.035 225.1)
- #28150C
#28150C
oklch(22% 0.035 45.8)
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 #051E27, 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 0.042
- Jet #212529 ΔE 0.050
- Rich Navy #001219 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.055
- Almost Black #070D0D ΔE 0.073
- Navy Blue #001146 ΔE 0.078
- Space Cadet #2B2D42 ΔE 0.091
Use #051E27 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.