#021C1F
Closest named color: Rich Black (#0D1B2A). oklch(20.8% 0.033 205.4), rgb(2, 28, 31).
Aa
White text reads best on this color (17.66:1).
About this color
#021C1F is a very dark, muted teal or cyan. In OKLCH its lightness is 21%, its chroma 0.033 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.029 away. White text reads best on it, at 17.66:1.
| Hue family | Teals and cyans |
| Lightness | very dark (21%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.66:1 |
Values
| HEX | #021C1F |
| RGB | rgb(2, 28, 31) |
| HSL | hsl(186, 88%, 6%) |
| OKLCH | oklch(20.8% 0.033 205.4) |
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 #021C1F | 17.66:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #021C1F | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #021C1F text on white | 17.66:1 | AAA | Lc 104.3 | Preferred for body text |
| #021C1F text on black | 1.18:1 | 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
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEE0
oklch(88.6% 0.022 204)
-
Step 300
300
#A4C8CD
oklch(80.8% 0.039 206.8)
-
Step 400
400
#71ACB3
oklch(70.7% 0.062 205.3)
-
Step 500
500
#4697A1
oklch(63% 0.08 206.2)
-
Step 600
600
#20828C
oklch(55.7% 0.087 205.3)
-
Step 700
700
#0E6D77
oklch(49% 0.081 206.4)
-
Step 800
800
#125961
oklch(42.6% 0.067 206.4)
-
Step 900
900
#19494F
oklch(37.6% 0.052 206.6)
-
Step 950
950 (this color)
#021C1F
oklch(20.8% 0.033 205.4)
#021C1F 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) | #191A1F | 0.033 |
| Deuteranopia (no green cones) | #14171F | 0.030 |
| Tritanopia (no blue cones) | #001E1D | 0.010 |
| Achromatopsia (no color) | #181818 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021C1F
#021C1F
oklch(20.8% 0.033 205.4)
- #251210
#251210
oklch(20.9% 0.032 26.6)
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 #021C1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.029
- Rich Navy #001219 ΔE 0.040
- Dark #1B2431 ΔE 0.057
- Almost Black #070D0D ΔE 0.060
- Jet #212529 ΔE 0.061
- Oxford Blue #1B263B ΔE 0.072
- Dark Forest Green #002D04 ΔE 0.089
- Navy Blue #001146 ΔE 0.089
Use #021C1F 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.