#02151E
Closest named color: Rich Navy (#001219). oklch(18.4% 0.033 229.5), rgb(2, 21, 30).
Aa
White text reads best on this color (18.60:1).
About this color
#02151E is a very dark, muted teal or cyan. In OKLCH its lightness is 18%, its chroma 0.033 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.016 away. White text reads best on it, at 18.60:1.
| Hue family | Teals and cyans |
| Lightness | very dark (18%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.12:1 |
| White text | 18.60:1 |
Values
| HEX | #02151E |
| RGB | rgb(2, 21, 30) |
| HSL | hsl(199, 88%, 6%) |
| OKLCH | oklch(18.4% 0.033 229.5) |
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 #02151E | 18.60:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #02151E | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #02151E text on white | 18.60:1 | AAA | Lc 105.1 | Preferred for body text |
| #02151E text on black | 1.12:1 | 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
#CBDCE5
oklch(88.4% 0.022 230.6)
-
Step 300
300
#A8C6D5
oklch(80.9% 0.039 229.5)
-
Step 400
400
#78A8C0
oklch(70.6% 0.062 230.4)
-
Step 500
500
#5393B0
oklch(63.2% 0.079 229.2)
-
Step 600
600
#357D9C
oklch(55.8% 0.086 229.5)
-
Step 700
700
#266985
oklch(49.1% 0.08 229.4)
-
Step 800
800
#22566C
oklch(42.8% 0.066 229)
-
Step 900
900
#214758
oklch(37.8% 0.052 229.5)
-
Step 950
950 (this color)
#02151E
oklch(18.4% 0.033 229.5)
#02151E 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) | #10151E | 0.022 |
| Deuteranopia (no green cones) | #0C121E | 0.018 |
| Tritanopia (no blue cones) | #001818 | 0.020 |
| Achromatopsia (no color) | #131313 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02151E
#02151E
oklch(18.4% 0.033 229.5)
- #1E0E05
#1E0E05
oklch(18.5% 0.033 51.5)
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 #02151E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.016
- Rich Black #0D1B2A ΔE 0.036
- Almost Black #070D0D ΔE 0.040
- Dark Navy #000435 ΔE 0.075
- Dark #1B2431 ΔE 0.075
- Dark Navy Blue #00022E ΔE 0.077
- Midnight #03012D ΔE 0.079
- Navy Blue #001146 ΔE 0.081
Use #02151E 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.