#090F39
Closest named color: Navy Blue (#001146). oklch(19.7% 0.081 270.6), rgb(9, 15, 57).
Aa
White text reads best on this color (18.43:1).
About this color
#090F39 is a very dark, moderately saturated blue. In OKLCH its lightness is 20%, its chroma 0.081 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.028 away. White text reads best on it, at 18.43:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.13:1 |
| White text | 18.43:1 |
Values
| HEX | #090F39 |
| RGB | rgb(9, 15, 57) |
| HSL | hsl(233, 73%, 13%) |
| OKLCH | oklch(19.7% 0.081 270.6) |
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 #090F39 | 18.43:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #090F39 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #090F39 text on white | 18.43:1 | AAA | Lc 104.8 | Preferred for body text |
| #090F39 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CCD8FD
oklch(88.5% 0.053 271.1)
-
Step 300
300
#A9BEFF
oklch(80.9% 0.095 270.4)
-
Step 400
400
#7D99FF
oklch(70.7% 0.152 270.5)
-
Step 500
500
#5F7BFE
oklch(63% 0.196 270.7)
-
Step 600
600
#4860ED
oklch(55.6% 0.213 270.5)
-
Step 700
700
#3B4ECF
oklch(49.2% 0.199 270.7)
-
Step 800
800
#3041A7
oklch(42.7% 0.164 270.5)
-
Step 900
900
#293984
oklch(37.8% 0.127 270.1)
-
Step 950
950 (this color)
#090F39
oklch(19.7% 0.081 270.6)
#090F39 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) | #00163A | 0.022 |
| Deuteranopia (no green cones) | #001238 | 0.015 |
| Tritanopia (no blue cones) | #001A22 | 0.064 |
| Achromatopsia (no color) | #141414 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #090F39
#090F39
oklch(19.7% 0.081 270.6)
- #1C1400
#1C1400
oklch(19.6% 0.04 90.3)
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 #090F39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.028
- Night Blue #040348 ΔE 0.039
- Dark Navy #000435 ΔE 0.041
- Very Dark Blue #000133 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.053
- Midnight #03012D ΔE 0.055
- Dark Navy Blue #00022E ΔE 0.055
- Dark Indigo #1F0954 ΔE 0.064
Use #090F39 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.