#091A2B
Closest named color: Rich Black (#0D1B2A). oklch(21.3% 0.041 250.3), rgb(9, 26, 43).
Aa
White text reads best on this color (17.58:1).
About this color
#091A2B is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.041 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.007 away. White text reads best on it, at 17.58:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.58:1 |
Values
| HEX | #091A2B |
| RGB | rgb(9, 26, 43) |
| HSL | hsl(210, 65%, 10%) |
| OKLCH | oklch(21.3% 0.041 250.3) |
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 #091A2B | 17.58:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #091A2B | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #091A2B text on white | 17.58:1 | AAA | Lc 104.3 | Preferred for body text |
| #091A2B text on black | 1.19:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEB
oklch(88.5% 0.027 249.9)
-
Step 300
300
#AAC4DF
oklch(81% 0.048 249.4)
-
Step 400
400
#7CA5D0
oklch(70.8% 0.077 250.1)
-
Step 500
500
#598DC3
oklch(63% 0.099 250.5)
-
Step 600
600
#3E77B0
oklch(55.7% 0.108 250.3)
-
Step 700
700
#2F6497
oklch(49.2% 0.1 249.8)
-
Step 800
800
#28517A
oklch(42.5% 0.083 250.4)
-
Step 900
900
#254463
oklch(37.8% 0.065 249.9)
-
Step 950
950 (this color)
#091A2B
oklch(21.3% 0.041 250.3)
#091A2B 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) | #131B2C | 0.015 |
| Deuteranopia (no green cones) | #0E182B | 0.009 |
| Tritanopia (no blue cones) | #001E20 | 0.032 |
| Achromatopsia (no color) | #191919 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #091A2B
#091A2B
oklch(21.3% 0.041 250.3)
- #251503
#251503
oklch(21.3% 0.041 68.4)
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 #091A2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.007
- Dark #1B2431 ΔE 0.047
- Rich Navy #001219 ΔE 0.048
- Oxford Blue #1B263B ΔE 0.057
- Jet #212529 ΔE 0.058
- Navy Blue #001146 ΔE 0.063
- Almost Black #070D0D ΔE 0.070
- Dark Navy #000435 ΔE 0.078
Use #091A2B 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.