#091B36
Closest named color: Rich Black (#0D1B2A). oklch(22.4% 0.058 258.4), rgb(9, 27, 54).
Aa
White text reads best on this color (17.18:1).
About this color
#091B36 is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.058 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.024 away. White text reads best on it, at 17.18:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.18:1 |
Values
| HEX | #091B36 |
| RGB | rgb(9, 27, 54) |
| HSL | hsl(216, 71%, 12%) |
| OKLCH | oklch(22.4% 0.058 258.4) |
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 #091B36 | 17.18:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #091B36 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #091B36 text on white | 17.18:1 | AAA | Lc 103.9 | Preferred for body text |
| #091B36 text on black | 1.22:1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADAF3
oklch(88.4% 0.039 259.3)
-
Step 300
300
#A6C2ED
oklch(80.8% 0.068 258.9)
-
Step 400
400
#76A2E5
oklch(70.8% 0.11 258.6)
-
Step 500
500
#5189DD
oklch(63.1% 0.14 258.3)
-
Step 600
600
#3571CB
oklch(55.6% 0.153 258.5)
-
Step 700
700
#275EAF
oklch(49% 0.142 258.4)
-
Step 800
800
#224D8E
oklch(42.6% 0.118 258.6)
-
Step 900
900
#214171
oklch(37.7% 0.091 258.4)
-
Step 950
950 (this color)
#091B36
oklch(22.4% 0.058 258.4)
#091B36 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) | #0E1D37 | 0.010 |
| Deuteranopia (no green cones) | #071935 | 0.008 |
| Tritanopia (no blue cones) | #002125 | 0.046 |
| Achromatopsia (no color) | #1B1B1B | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #091B36
#091B36
oklch(22.4% 0.058 258.4)
- #271800
#271800
oklch(22.3% 0.047 77.9)
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 #091B36, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.024
- Dark #1B2431 ΔE 0.045
- Navy Blue #001146 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.048
- Jet #212529 ΔE 0.062
- Rich Navy #001219 ΔE 0.066
- Night Blue #040348 ΔE 0.072
- Dark Navy #000435 ΔE 0.075
Use #091B36 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.