#021B19
Closest named color: Rich Navy (#001219). oklch(20.1% 0.032 187.8), rgb(2, 27, 25).
Aa
White text reads best on this color (17.89:1).
About this color
#021B19 is a very dark, muted teal or cyan. In OKLCH its lightness is 20%, its chroma 0.032 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.038 away. White text reads best on it, at 17.89:1.
| Hue family | Teals and cyans |
| Lightness | very dark (20%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.17:1 |
| White text | 17.89:1 |
Values
| HEX | #021B19 |
| RGB | rgb(2, 27, 25) |
| HSL | hsl(175, 86%, 6%) |
| OKLCH | oklch(20.1% 0.032 187.8) |
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 #021B19 | 17.89:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #021B19 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #021B19 text on white | 17.89:1 | AAA | Lc 104.5 | Preferred for body text |
| #021B19 text on black | 1.17:1 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDB
oklch(88.5% 0.022 186)
-
Step 300
300
#A6C9C5
oklch(80.9% 0.038 187.9)
-
Step 400
400
#73ADA7
oklch(70.6% 0.061 187.7)
-
Step 500
500
#4A9992
oklch(63.1% 0.079 187.7)
-
Step 600
600
#26837C
oklch(55.5% 0.085 187.7)
-
Step 700
700
#176F69
oklch(49.1% 0.079 188)
-
Step 800
800
#175A55
oklch(42.6% 0.065 187.7)
-
Step 900
900
#1C4A46
oklch(37.6% 0.051 187.5)
-
Step 950
950 (this color)
#021B19
oklch(20.1% 0.032 187.8)
#021B19 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) | #191919 | 0.034 |
| Deuteranopia (no green cones) | #151619 | 0.032 |
| Tritanopia (no blue cones) | #001C1A | 0.004 |
| Achromatopsia (no color) | #171717 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021B19
#021B19
oklch(20.1% 0.032 187.8)
- #231014
#231014
oklch(20.2% 0.032 6.8)
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 #021B19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.038
- Rich Black #0D1B2A ΔE 0.039
- Almost Black #070D0D ΔE 0.054
- Dark #1B2431 ΔE 0.066
- Jet #212529 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.082
- Dark Forest Green #002D04 ΔE 0.085
- Very Dark Green #062E03 ΔE 0.089
Use #021B19 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.