#021C2A
Closest named color: Rich Black (#0D1B2A). oklch(21.4% 0.043 235.3), rgb(2, 28, 42).
Aa
White text reads best on this color (17.46:1).
About this color
#021C2A is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.043 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.013 away. White text reads best on it, at 17.46:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.20:1 |
| White text | 17.46:1 |
Values
| HEX | #021C2A |
| RGB | rgb(2, 28, 42) |
| HSL | hsl(201, 91%, 9%) |
| OKLCH | oklch(21.4% 0.043 235.3) |
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 #021C2A | 17.46:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #021C2A | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #021C2A text on white | 17.46:1 | AAA | Lc 104.1 | Preferred for body text |
| #021C2A text on black | 1.20:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE9
oklch(88.6% 0.028 232.7)
-
Step 300
300
#A2C6DD
oklch(80.8% 0.05 236.3)
-
Step 400
400
#6DA9CC
oklch(70.7% 0.081 235.1)
-
Step 500
500
#4193BF
oklch(63.1% 0.103 235.2)
-
Step 600
600
#177CAB
oklch(55.5% 0.112 235.6)
-
Step 700
700
#026993
oklch(49.2% 0.104 235.1)
-
Step 800
800
#0C5677
oklch(42.8% 0.086 234.6)
-
Step 900
900
#164760
oklch(37.8% 0.067 234.9)
-
Step 950
950 (this color)
#021C2A
oklch(21.4% 0.043 235.3)
#021C2A 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) | #151C2B | 0.025 |
| Deuteranopia (no green cones) | #0F182A | 0.020 |
| Tritanopia (no blue cones) | #002021 | 0.027 |
| Achromatopsia (no color) | #1A1A1A | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021C2A
#021C2A
oklch(21.4% 0.043 235.3)
- #281305
#281305
oklch(21.4% 0.043 53.6)
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 #021C2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.013
- Rich Navy #001219 ΔE 0.047
- Dark #1B2431 ΔE 0.048
- Jet #212529 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.058
- Navy Blue #001146 ΔE 0.067
- Almost Black #070D0D ΔE 0.071
- Dark Navy #000435 ΔE 0.082
Use #021C2A 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.