#090E21
Closest named color: Rich Navy (#001219). oklch(17.1% 0.04 270.5), rgb(9, 14, 33).
Aa
White text reads best on this color (19.15:1).
About this color
#090E21 is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.040 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.030 away. White text reads best on it, at 19.15:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.09:1 |
| White text | 19.15:1 |
Values
| HEX | #090E21 |
| RGB | rgb(9, 14, 33) |
| HSL | hsl(228, 57%, 8%) |
| OKLCH | oklch(17.1% 0.04 270.5) |
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 #090E21 | 19.15:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #090E21 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #090E21 text on white | 19.15:1 | AAA | Lc 105.5 | Preferred for body text |
| #090E21 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
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D2D9EB
oklch(88.5% 0.026 268.8)
-
Step 300
300
#B5C0E0
oklch(81% 0.047 270.4)
-
Step 400
400
#8E9FD1
oklch(70.8% 0.076 269.9)
-
Step 500
500
#7386C5
oklch(63.1% 0.098 270.6)
-
Step 600
600
#5C6FB2
oklch(55.7% 0.107 270.6)
-
Step 700
700
#4C5D99
oklch(49.3% 0.098 270.5)
-
Step 800
800
#3E4C7C
oklch(42.8% 0.082 270.3)
-
Step 900
900
#353F64
oklch(37.6% 0.065 271.5)
-
Step 950
950 (this color)
#090E21
oklch(17.1% 0.04 270.5)
#090E21 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) | #061022 | 0.008 |
| Deuteranopia (no green cones) | #040E21 | 0.010 |
| Tritanopia (no blue cones) | #011215 | 0.037 |
| Achromatopsia (no color) | #0F0F0F | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #090E21
#090E21
oklch(17.1% 0.04 270.5)
- #150F00
#150F00
oklch(17.1% 0.035 92.6)
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 #090E21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.030
- Almost Black #070D0D ΔE 0.043
- Rich Black #0D1B2A ΔE 0.049
- Midnight #03012D ΔE 0.056
- Dark Navy #000435 ΔE 0.057
- Dark Navy Blue #00022E ΔE 0.057
- Very Dark Blue #000133 ΔE 0.063
- Navy Blue #001146 ΔE 0.074
Use #090E21 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.