#021C30
Closest named color: Rich Black (#0D1B2A). oklch(21.9% 0.051 244.7), rgb(2, 28, 48).
Aa
White text reads best on this color (17.33:1).
About this color
#021C30 is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.051 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.016 away. White text reads best on it, at 17.33:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.33:1 |
Values
| HEX | #021C30 |
| RGB | rgb(2, 28, 48) |
| HSL | hsl(206, 92%, 10%) |
| OKLCH | oklch(21.9% 0.051 244.7) |
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 #021C30 | 17.33:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #021C30 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #021C30 text on white | 17.33:1 | AAA | Lc 104.0 | Preferred for body text |
| #021C30 text on black | 1.21:1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C7DCEE
oklch(88.4% 0.034 244)
-
Step 300
300
#A0C5E6
oklch(80.8% 0.061 245.6)
-
Step 400
400
#6BA7D9
oklch(70.7% 0.097 244.9)
-
Step 500
500
#3E90CF
oklch(63.1% 0.124 244.9)
-
Step 600
600
#1079BC
oklch(55.6% 0.135 244.8)
-
Step 700
700
#0066A1
oklch(49.2% 0.123 244.5)
-
Step 800
800
#075383
oklch(42.7% 0.103 244.7)
-
Step 900
900
#144569
oklch(37.7% 0.08 244.8)
-
Step 950
950 (this color)
#021C30
oklch(21.9% 0.051 244.7)
#021C30 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) | #121D31 | 0.021 |
| Deuteranopia (no green cones) | #0B1830 | 0.016 |
| Tritanopia (no blue cones) | #002123 | 0.036 |
| Achromatopsia (no color) | #1A1A1A | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021C30
#021C30
oklch(21.9% 0.051 244.7)
- #291500
#291500
oklch(21.9% 0.048 66.7)
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 #021C30, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.016
- Dark #1B2431 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.053
- Rich Navy #001219 ΔE 0.055
- Navy Blue #001146 ΔE 0.057
- Jet #212529 ΔE 0.060
- Dark Navy #000435 ΔE 0.077
- Almost Black #070D0D ΔE 0.080
Use #021C30 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.