#090D21
Closest named color: Rich Navy (#001219). oklch(16.8% 0.042 272.5), rgb(9, 13, 33).
Aa
White text reads best on this color (19.24:1).
About this color
#090D21 is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.042 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.032 away. White text reads best on it, at 19.24:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.09:1 |
| White text | 19.24:1 |
Values
| HEX | #090D21 |
| RGB | rgb(9, 13, 33) |
| HSL | hsl(230, 57%, 8%) |
| OKLCH | oklch(16.8% 0.042 272.5) |
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 #090D21 | 19.24:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #090D21 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #090D21 text on white | 19.24:1 | AAA | Lc 105.5 | Preferred for body text |
| #090D21 text on black | 1.09:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D3D8EC
oklch(88.4% 0.028 274.6)
-
Step 300
300
#B5BFE2
oklch(80.8% 0.051 272.7)
-
Step 400
400
#8F9ED3
oklch(70.7% 0.08 272)
-
Step 500
500
#7485C7
oklch(63.1% 0.102 272.2)
-
Step 600
600
#5E6EB4
oklch(55.7% 0.11 272.6)
-
Step 700
700
#4D5B9B
oklch(49% 0.104 272.7)
-
Step 800
800
#3F4B7E
oklch(42.7% 0.086 272.3)
-
Step 900
900
#363F65
oklch(37.8% 0.066 272.7)
-
Step 950
950 (this color)
#090D21
oklch(16.8% 0.042 272.5)
#090D21 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) | #051022 | 0.012 |
| Deuteranopia (no green cones) | #030D21 | 0.012 |
| Tritanopia (no blue cones) | #011115 | 0.037 |
| Achromatopsia (no color) | #0E0E0E | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #090D21
#090D21
oklch(16.8% 0.042 272.5)
- #140E00
#140E00
oklch(16.7% 0.034 92)
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 #090D21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.032
- Almost Black #070D0D ΔE 0.044
- Rich Black #0D1B2A ΔE 0.052
- Midnight #03012D ΔE 0.053
- Dark Navy Blue #00022E ΔE 0.055
- Dark Navy #000435 ΔE 0.055
- Very Dark Blue #000133 ΔE 0.060
- Navy Blue #001146 ΔE 0.074
Use #090D21 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.