#021524
Closest named color: Rich Navy (#001219). oklch(18.8% 0.041 243.1), rgb(2, 21, 36).
Aa
White text reads best on this color (18.49:1).
About this color
#021524 is a very dark, muted blue. In OKLCH its lightness is 19%, its chroma 0.041 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.025 away. White text reads best on it, at 18.49:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.13:1 |
| White text | 18.49:1 |
Values
| HEX | #021524 |
| RGB | rgb(2, 21, 36) |
| HSL | hsl(206, 89%, 7%) |
| OKLCH | oklch(18.8% 0.041 243.1) |
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 #021524 | 18.49:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #021524 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #021524 text on white | 18.49:1 | AAA | Lc 105.0 | Preferred for body text |
| #021524 text on black | 1.13:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDCEA
oklch(88.6% 0.027 242.8)
-
Step 300
300
#A7C5DE
oklch(81% 0.048 243.5)
-
Step 400
400
#76A7CD
oklch(70.8% 0.077 242.4)
-
Step 500
500
#5090C1
oklch(63.1% 0.099 243.4)
-
Step 600
600
#3179AD
oklch(55.5% 0.108 243.5)
-
Step 700
700
#236695
oklch(49.1% 0.1 243.5)
-
Step 800
800
#1F5378
oklch(42.6% 0.082 243.2)
-
Step 900
900
#204561
oklch(37.7% 0.064 243.6)
-
Step 950
950 (this color)
#021524
oklch(18.8% 0.041 243.1)
#021524 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) | #0E1525 | 0.019 |
| Deuteranopia (no green cones) | #091224 | 0.014 |
| Tritanopia (no blue cones) | #00191A | 0.030 |
| Achromatopsia (no color) | #141414 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021524
#021524
oklch(18.8% 0.041 243.1)
- #200F01
#200F01
oklch(18.9% 0.04 63.3)
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 #021524, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.025
- Rich Black #0D1B2A ΔE 0.030
- Almost Black #070D0D ΔE 0.050
- Dark Navy #000435 ΔE 0.066
- Navy Blue #001146 ΔE 0.069
- Dark Navy Blue #00022E ΔE 0.070
- Dark #1B2431 ΔE 0.071
- Midnight #03012D ΔE 0.072
Use #021524 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.