#02121B
Closest named color: Rich Navy (#001219). oklch(17.2% 0.031 232.7), rgb(2, 18, 27).
Aa
White text reads best on this color (19.00:1).
About this color
#02121B is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.031 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.006 away. White text reads best on it, at 19.00:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.10:1 |
| White text | 19.00:1 |
Values
| HEX | #02121B |
| RGB | rgb(2, 18, 27) |
| HSL | hsl(202, 86%, 6%) |
| OKLCH | oklch(17.2% 0.031 232.7) |
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 #02121B | 19.00:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #02121B | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #02121B text on white | 19.00:1 | AAA | Lc 105.3 | Preferred for body text |
| #02121B text on black | 1.10:1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#AAC5D5
oklch(80.8% 0.037 233.9)
-
Step 400
400
#7CA7BF
oklch(70.6% 0.058 233.1)
-
Step 500
500
#5992AF
oklch(63.2% 0.074 231.7)
-
Step 600
600
#3D7B9B
oklch(55.5% 0.081 233.3)
-
Step 700
700
#2E6884
oklch(49.1% 0.075 232.1)
-
Step 800
800
#28556B
oklch(42.8% 0.061 231.9)
-
Step 900
900
#254657
oklch(37.7% 0.048 232.5)
-
Step 950
950 (this color)
#02121B
oklch(17.2% 0.031 232.7)
#02121B 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) | #0E121B | 0.021 |
| Deuteranopia (no green cones) | #0A0F1B | 0.017 |
| Tritanopia (no blue cones) | #001415 | 0.018 |
| Achromatopsia (no color) | #101010 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02121B
#02121B
oklch(17.2% 0.031 232.7)
- #1A0C04
#1A0C04
oklch(17.2% 0.03 53.8)
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 #02121B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.006
- Almost Black #070D0D ΔE 0.031
- Rich Black #0D1B2A ΔE 0.047
- Dark Navy Blue #00022E ΔE 0.072
- Dark Navy #000435 ΔE 0.072
- Midnight #03012D ΔE 0.073
- Very Dark Blue #000133 ΔE 0.078
- Navy Blue #001146 ΔE 0.086
Use #02121B 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.