#021F25
Closest named color: Rich Black (#0D1B2A). oklch(22.1% 0.036 213.8), rgb(2, 31, 37).
Aa
White text reads best on this color (17.13:1).
About this color
#021F25 is a very dark, muted teal or cyan. In OKLCH its lightness is 22%, its chroma 0.036 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 17.13:1.
| Hue family | Teals and cyans |
| Lightness | very dark (22%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.13:1 |
Values
| HEX | #021F25 |
| RGB | rgb(2, 31, 37) |
| HSL | hsl(190, 90%, 8%) |
| OKLCH | oklch(22.1% 0.036 213.8) |
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 #021F25 | 17.13:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #021F25 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #021F25 text on white | 17.13:1 | AAA | Lc 103.9 | Preferred for body text |
| #021F25 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
#C8DEE3
oklch(88.6% 0.024 212.9)
-
Step 300
300
#A2C8D2
oklch(80.9% 0.043 215.5)
-
Step 400
400
#6CACBB
oklch(70.7% 0.069 214.2)
-
Step 500
500
#3E97AA
oklch(63.1% 0.088 214.2)
-
Step 600
600
#0A8195
oklch(55.5% 0.096 213.8)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#045967
oklch(42.7% 0.074 213.3)
-
Step 900
900
#134954
oklch(37.6% 0.057 214.2)
-
Step 950
950 (this color)
#021F25
oklch(22.1% 0.036 213.8)
#021F25 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 | 0.033 |
| Deuteranopia (no green cones) | #161A25 | 0.030 |
| Tritanopia (no blue cones) | #002121 | 0.013 |
| Achromatopsia (no color) | #1B1B1B | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021F25
#021F25
oklch(22.1% 0.036 213.8)
- #29140F
#29140F
oklch(22% 0.036 34.3)
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 #021F25, 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 0.045
- Jet #212529 ΔE 0.050
- Rich Navy #001219 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.059
- Almost Black #070D0D ΔE 0.074
- Navy Blue #001146 ΔE 0.084
- Dark Forest Green #002D04 ΔE 0.087
Use #021F25 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.