#091D38
Closest named color: Rich Black (#0D1B2A). oklch(23.1% 0.058 256.7), rgb(9, 29, 56).
Aa
White text reads best on this color (16.87:1).
About this color
#091D38 is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.058 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.027 away. White text reads best on it, at 16.87:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.24:1 |
| White text | 16.87:1 |
Values
| HEX | #091D38 |
| RGB | rgb(9, 29, 56) |
| HSL | hsl(214, 72%, 13%) |
| OKLCH | oklch(23.1% 0.058 256.7) |
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 #091D38 | 16.87:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #091D38 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #091D38 text on white | 16.87:1 | AAA | Lc 103.6 | Preferred for body text |
| #091D38 text on black | 1.24:1 | 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
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#C9DBF3
oklch(88.5% 0.038 255.6)
-
Step 300
300
#A4C3EE
oklch(80.9% 0.07 256.6)
-
Step 400
400
#73A3E5
oklch(70.8% 0.11 256.5)
-
Step 500
500
#4D8ADD
oklch(63.1% 0.141 256.6)
-
Step 600
600
#2F72CB
oklch(55.6% 0.154 256.8)
-
Step 700
700
#215FB0
oklch(49.1% 0.144 256.8)
-
Step 800
800
#1D4E8E
oklch(42.7% 0.118 256.6)
-
Step 900
900
#1E4171
oklch(37.6% 0.092 256.9)
-
Step 950
950 (this color)
#091D38
oklch(23.1% 0.058 256.7)
#091D38 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) | #101F39 | 0.012 |
| Deuteranopia (no green cones) | #081B37 | 0.007 |
| Tritanopia (no blue cones) | #002327 | 0.045 |
| Achromatopsia (no color) | #1D1D1D | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #091D38
#091D38
oklch(23.1% 0.058 256.7)
- #2A1A00
#2A1A00
oklch(23.3% 0.049 77.5)
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 #091D38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.027
- Dark #1B2431 ΔE 0.041
- Oxford Blue #1B263B ΔE 0.042
- Navy Blue #001146 ΔE 0.049
- Jet #212529 ΔE 0.058
- Rich Navy #001219 ΔE 0.072
- Night Blue #040348 ΔE 0.075
- Dark Indigo #1F0954 ΔE 0.077
Use #091D38 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.