#02091B
Closest named color: Rich Navy (#001219). oklch(14.3% 0.042 260.2), rgb(2, 9, 27).
Aa
White text reads best on this color (19.85:1).
About this color
#02091B is a very dark, muted blue. In OKLCH its lightness is 14%, its chroma 0.042 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.036 away. White text reads best on it, at 19.85:1.
| Hue family | Blues |
| Lightness | very dark (14%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.05:1 |
| White text | 19.85:1 |
Values
| HEX | #02091B |
| RGB | rgb(2, 9, 27) |
| HSL | hsl(223, 86%, 6%) |
| OKLCH | oklch(14.3% 0.042 260.2) |
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 #02091B | 19.85:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #02091B | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #02091B text on white | 19.85:1 | AAA | Lc 105.8 | Preferred for body text |
| #02091B text on black | 1.05:1 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CFDAEC
oklch(88.5% 0.028 260.3)
-
Step 300
300
#AEC2E2
oklch(81% 0.05 259.8)
-
Step 400
400
#84A2D3
oklch(70.8% 0.08 260.1)
-
Step 500
500
#658AC7
oklch(63.2% 0.101 260.1)
-
Step 600
600
#4C73B4
oklch(55.7% 0.111 260.1)
-
Step 700
700
#3D609B
oklch(49.1% 0.103 260.3)
-
Step 800
800
#324F7D
oklch(42.8% 0.084 259.3)
-
Step 900
900
#2C4265
oklch(37.8% 0.066 259.4)
-
Step 950
950 (this color)
#02091B
oklch(14.3% 0.042 260.2)
#02091B 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) | #020B1C | 0.008 |
| Deuteranopia (no green cones) | #00081B | 0.008 |
| Tritanopia (no blue cones) | #000D10 | 0.033 |
| Achromatopsia (no color) | #090909 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02091B
#02091B
oklch(14.3% 0.042 260.2)
- #100800
#100800
oklch(14.3% 0.03 79.6)
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 #02091B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.036
- Almost Black #070D0D ΔE 0.040
- Midnight #03012D ΔE 0.047
- Dark Navy Blue #00022E ΔE 0.048
- Dark Navy #000435 ΔE 0.056
- Very Dark Blue #000133 ΔE 0.057
- Rich Black #0D1B2A ΔE 0.075
- Very Dark Brown #1D0200 ΔE 0.089
Use #02091B 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.