#021E30
Closest named color: Rich Black (#0D1B2A). oklch(22.5% 0.049 240.6), rgb(2, 30, 48).
Aa
White text reads best on this color (17.05:1).
About this color
#021E30 is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.049 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.017 away. White text reads best on it, at 17.05:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 17.05:1 |
Values
| HEX | #021E30 |
| RGB | rgb(2, 30, 48) |
| HSL | hsl(203, 92%, 10%) |
| OKLCH | oklch(22.5% 0.049 240.6) |
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 #021E30 | 17.05:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #021E30 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #021E30 text on white | 17.05:1 | AAA | Lc 103.8 | Preferred for body text |
| #021E30 text on black | 1.23:1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C7DCED
oklch(88.4% 0.033 242.4)
-
Step 300
300
#A0C6E3
oklch(80.9% 0.058 241.3)
-
Step 400
400
#69A8D5
oklch(70.7% 0.093 240.9)
-
Step 500
500
#3A92CA
oklch(63.2% 0.118 240.5)
-
Step 600
600
#017BB6
oklch(55.6% 0.128 240.3)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#114666
oklch(37.7% 0.077 240.5)
-
Step 950
950 (this color)
#021E30
oklch(22.5% 0.049 240.6)
#021E30 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) | #151E31 | 0.024 |
| Deuteranopia (no green cones) | #0F1A30 | 0.019 |
| Tritanopia (no blue cones) | #002324 | 0.034 |
| Achromatopsia (no color) | #1C1C1C | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021E30
#021E30
oklch(22.5% 0.049 240.6)
- #2C1502
#2C1502
oklch(22.4% 0.049 59)
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 #021E30, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.017
- Dark #1B2431 ΔE 0.041
- Oxford Blue #1B263B ΔE 0.048
- Jet #212529 ΔE 0.054
- Rich Navy #001219 ΔE 0.059
- Navy Blue #001146 ΔE 0.062
- Almost Black #070D0D ΔE 0.084
- Dark Navy #000435 ΔE 0.085
Use #021E30 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.