#02191D
Closest named color: Rich Navy (#001219). oklch(19.7% 0.031 210), rgb(2, 25, 29).
Aa
White text reads best on this color (18.11:1).
About this color
#02191D is a very dark, muted teal or cyan. In OKLCH its lightness is 20%, its chroma 0.031 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.029 away. White text reads best on it, at 18.11:1.
| Hue family | Teals and cyans |
| Lightness | very dark (20%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.15:1 |
| White text | 18.11:1 |
Values
| HEX | #02191D |
| RGB | rgb(2, 25, 29) |
| HSL | hsl(189, 87%, 6%) |
| OKLCH | oklch(19.7% 0.031 210) |
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 #02191D | 18.11:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #02191D | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #02191D text on white | 18.11:1 | AAA | Lc 104.7 | Preferred for body text |
| #02191D text on black | 1.15:1 | 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
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CBDDE1
oklch(88.5% 0.02 212.6)
-
Step 300
300
#A6C8CE
oklch(81% 0.037 209.5)
-
Step 400
400
#74ABB5
oklch(70.7% 0.059 210.1)
-
Step 500
500
#4D96A3
oklch(63.1% 0.075 210.5)
-
Step 600
600
#2B808E
oklch(55.6% 0.082 210.5)
-
Step 700
700
#1C6C78
oklch(49% 0.076 209.7)
-
Step 800
800
#1B5862
oklch(42.6% 0.063 210.5)
-
Step 900
900
#1D4950
oklch(37.8% 0.049 209.3)
-
Step 950
950 (this color)
#02191D
oklch(19.7% 0.031 210)
#02191D 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) | #16181D | 0.030 |
| Deuteranopia (no green cones) | #11151D | 0.025 |
| Tritanopia (no blue cones) | #001B1A | 0.012 |
| Achromatopsia (no color) | #161616 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02191D
#02191D
oklch(19.7% 0.031 210)
- #22100D
#22100D
oklch(19.8% 0.031 30.2)
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 #02191D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.029
- Rich Black #0D1B2A ΔE 0.032
- Almost Black #070D0D ΔE 0.049
- Dark #1B2431 ΔE 0.066
- Jet #212529 ΔE 0.070
- Oxford Blue #1B263B ΔE 0.080
- Navy Blue #001146 ΔE 0.088
- Dark Navy #000435 ΔE 0.089
Use #02191D 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.