#021C24
Closest named color: Rich Black (#0D1B2A). oklch(21.1% 0.036 221.2), rgb(2, 28, 36).
Aa
White text reads best on this color (17.58:1).
About this color
#021C24 is a very dark, muted teal or cyan. In OKLCH its lightness is 21%, its chroma 0.036 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.020 away. White text reads best on it, at 17.58:1.
| Hue family | Teals and cyans |
| Lightness | very dark (21%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.58:1 |
Values
| HEX | #021C24 |
| RGB | rgb(2, 28, 36) |
| HSL | hsl(194, 89%, 7%) |
| OKLCH | oklch(21.1% 0.036 221.2) |
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 #021C24 | 17.58:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #021C24 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #021C24 text on white | 17.58:1 | AAA | Lc 104.3 | Preferred for body text |
| #021C24 text on black | 1.19:1 | 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
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A3C7D4
oklch(80.8% 0.043 221.8)
-
Step 400
400
#6FABBF
oklch(70.8% 0.069 221)
-
Step 500
500
#4495AF
oklch(63% 0.087 221.9)
-
Step 600
600
#1C7F9A
oklch(55.5% 0.094 221.4)
-
Step 700
700
#096B84
oklch(49% 0.088 221.9)
-
Step 800
800
#10586B
oklch(42.8% 0.073 220.7)
-
Step 900
900
#184857
oklch(37.6% 0.057 222.2)
-
Step 950
950 (this color)
#021C24
oklch(21.1% 0.036 221.2)
#021C24 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) | #171B24 | 0.029 |
| Deuteranopia (no green cones) | #121724 | 0.027 |
| Tritanopia (no blue cones) | #001F1F | 0.018 |
| Achromatopsia (no color) | #191919 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021C24
#021C24
oklch(21.1% 0.036 221.2)
- #26120B
#26120B
oklch(20.9% 0.036 40)
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 #021C24, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.020
- Rich Navy #001219 ΔE 0.042
- Dark #1B2431 ΔE 0.052
- Jet #212529 ΔE 0.059
- Almost Black #070D0D ΔE 0.064
- Oxford Blue #1B263B ΔE 0.065
- Navy Blue #001146 ΔE 0.079
- Dark Navy #000435 ΔE 0.089
Use #021C24 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.