#021D21
Closest named color: Rich Black (#0D1B2A). oklch(21.2% 0.034 208.4), rgb(2, 29, 33).
Aa
White text reads best on this color (17.49:1).
About this color
#021D21 is a very dark, muted teal or cyan. In OKLCH its lightness is 21%, its chroma 0.034 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.026 away. White text reads best on it, at 17.49:1.
| Hue family | Teals and cyans |
| Lightness | very dark (21%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.20:1 |
| White text | 17.49:1 |
Values
| HEX | #021D21 |
| RGB | rgb(2, 29, 33) |
| HSL | hsl(188, 89%, 7%) |
| OKLCH | oklch(21.2% 0.034 208.4) |
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 #021D21 | 17.49:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #021D21 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #021D21 text on white | 17.49:1 | AAA | Lc 104.2 | Preferred for body text |
| #021D21 text on black | 1.20:1 | 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
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE1
oklch(88.6% 0.023 207.1)
-
Step 300
300
#A3C8CE
oklch(80.8% 0.04 208.4)
-
Step 400
400
#6FACB6
oklch(70.7% 0.065 208.9)
-
Step 500
500
#4497A4
oklch(63% 0.082 209.1)
-
Step 600
600
#1A818F
oklch(55.5% 0.089 209)
-
Step 700
700
#056D7A
oklch(49% 0.083 209.3)
-
Step 800
800
#0E5963
oklch(42.7% 0.069 208.9)
-
Step 900
900
#174951
oklch(37.6% 0.054 209.9)
-
Step 950
950 (this color)
#021D21
oklch(21.2% 0.034 208.4)
#021D21 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) | #191B21 | 0.032 |
| Deuteranopia (no green cones) | #151821 | 0.030 |
| Tritanopia (no blue cones) | #001F1E | 0.011 |
| Achromatopsia (no color) | #191919 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021D21
#021D21
oklch(21.2% 0.034 208.4)
- #261210
#261210
oklch(21% 0.034 26.4)
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 #021D21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.026
- Rich Navy #001219 ΔE 0.044
- Dark #1B2431 ΔE 0.053
- Jet #212529 ΔE 0.057
- Almost Black #070D0D ΔE 0.065
- Oxford Blue #1B263B ΔE 0.067
- Navy Blue #001146 ΔE 0.087
- Dark Forest Green #002D04 ΔE 0.088
Use #021D21 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.