#091B26
Closest named color: Rich Black (#0D1B2A). oklch(21.3% 0.032 237.7), rgb(9, 27, 38).
Aa
White text reads best on this color (17.55:1).
About this color
#091B26 is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.032 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.010 away. White text reads best on it, at 17.55:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.55:1 |
Values
| HEX | #091B26 |
| RGB | rgb(9, 27, 38) |
| HSL | hsl(203, 62%, 9%) |
| OKLCH | oklch(21.3% 0.032 237.7) |
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 #091B26 | 17.55:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #091B26 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #091B26 text on white | 17.55:1 | AAA | Lc 104.3 | Preferred for body text |
| #091B26 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CDDCE6
oklch(88.6% 0.021 236.8)
-
Step 300
300
#AAC5D7
oklch(80.9% 0.039 237.2)
-
Step 400
400
#7DA7C3
oklch(70.8% 0.061 237.9)
-
Step 500
500
#5A91B3
oklch(63.2% 0.078 236.9)
-
Step 600
600
#3E7A9F
oklch(55.5% 0.085 238)
-
Step 700
700
#2F6788
oklch(49.1% 0.079 237.3)
-
Step 800
800
#28546F
oklch(42.7% 0.066 238)
-
Step 900
900
#264659
oklch(37.8% 0.05 236.2)
-
Step 950
950 (this color)
#091B26
oklch(21.3% 0.032 237.7)
#091B26 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) | #161B27 | 0.019 |
| Deuteranopia (no green cones) | #121826 | 0.016 |
| Tritanopia (no blue cones) | #001E1F | 0.024 |
| Achromatopsia (no color) | #191919 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #091B26
#091B26
oklch(21.3% 0.032 237.7)
- #241509
#241509
oklch(21.3% 0.032 58.5)
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 #091B26, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.010
- Rich Navy #001219 ΔE 0.045
- Dark #1B2431 ΔE 0.047
- Jet #212529 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.059
- Almost Black #070D0D ΔE 0.066
- Navy Blue #001146 ΔE 0.074
- Dark Navy #000435 ΔE 0.086
Use #091B26 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.