#021711
Closest named color: Rich Navy (#001219). oklch(18.4% 0.032 172.6), rgb(2, 23, 17).
Aa
White text reads best on this color (18.53:1).
About this color
#021711 is a very dark, muted teal or cyan. In OKLCH its lightness is 18%, its chroma 0.032 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.031 away. White text reads best on it, at 18.53:1.
| Hue family | Teals and cyans |
| Lightness | very dark (18%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.13:1 |
| White text | 18.53:1 |
Values
| HEX | #021711 |
| RGB | rgb(2, 23, 17) |
| HSL | hsl(163, 84%, 5%) |
| OKLCH | oklch(18.4% 0.032 172.6) |
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 #021711 | 18.53:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #021711 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #021711 text on white | 18.53:1 | AAA | Lc 105.0 | Preferred for body text |
| #021711 text on black | 1.13:1 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED8
oklch(88.5% 0.021 173.9)
-
Step 300
300
#A9C9BE
oklch(80.9% 0.038 172.5)
-
Step 400
400
#79AD9D
oklch(70.6% 0.06 173.4)
-
Step 500
500
#549985
oklch(63.1% 0.077 172.9)
-
Step 600
600
#35836E
oklch(55.5% 0.084 172.6)
-
Step 700
700
#276F5C
oklch(49.1% 0.078 172.5)
-
Step 800
800
#225A4B
oklch(42.6% 0.064 172.7)
-
Step 900
900
#224A3F
oklch(37.6% 0.05 173.4)
-
Step 950
950 (this color)
#021711
oklch(18.4% 0.032 172.6)
#021711 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) | #161511 | 0.033 |
| Deuteranopia (no green cones) | #131211 | 0.033 |
| Tritanopia (no blue cones) | #001715 | 0.008 |
| Achromatopsia (no color) | #131313 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021711
#021711
oklch(18.4% 0.032 172.6)
- #1D0C14
#1D0C14
oklch(18.3% 0.032 351.1)
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 #021711, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.031
- Almost Black #070D0D ΔE 0.039
- Rich Black #0D1B2A ΔE 0.054
- Jet #212529 ΔE 0.084
- Dark #1B2431 ΔE 0.084
- Very Dark Brown #1D0200 ΔE 0.087
- Dark Forest Green #002D04 ΔE 0.093
- Very Dark Green #062E03 ΔE 0.098
Use #021711 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.