#091D3A
Closest named color: Rich Black (#0D1B2A). oklch(23.3% 0.062 257.9), rgb(9, 29, 58).
Aa
White text reads best on this color (16.82:1).
About this color
#091D3A is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.062 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.031 away. White text reads best on it, at 16.82:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.24:1 |
| White text | 16.82:1 |
Values
| HEX | #091D3A |
| RGB | rgb(9, 29, 58) |
| HSL | hsl(216, 73%, 13%) |
| OKLCH | oklch(23.3% 0.062 257.9) |
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 #091D3A | 16.82:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #091D3A | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #091D3A text on white | 16.82:1 | AAA | Lc 103.6 | Preferred for body text |
| #091D3A 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C9DBF5
oklch(88.6% 0.041 257.5)
-
Step 300
300
#A4C3F0
oklch(81% 0.072 257.6)
-
Step 400
400
#72A2E9
oklch(70.7% 0.117 258)
-
Step 500
500
#4C89E2
oklch(63.2% 0.149 257.9)
-
Step 600
600
#2D71D0
oklch(55.7% 0.162 257.7)
-
Step 700
700
#205EB4
oklch(49.2% 0.15 257.8)
-
Step 800
800
#1C4D92
oklch(42.7% 0.125 257.8)
-
Step 900
900
#1D4174
oklch(37.7% 0.097 257.5)
-
Step 950
950 (this color)
#091D3A
oklch(23.3% 0.062 257.9)
#091D3A 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) | #0F203B | 0.013 |
| Deuteranopia (no green cones) | #061B39 | 0.008 |
| Tritanopia (no blue cones) | #002428 | 0.049 |
| Achromatopsia (no color) | #1D1D1D | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #091D3A
#091D3A
oklch(23.3% 0.062 257.9)
- #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 #091D3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.031
- Oxford Blue #1B263B ΔE 0.041
- Dark #1B2431 ΔE 0.042
- Navy Blue #001146 ΔE 0.047
- Jet #212529 ΔE 0.060
- Night Blue #040348 ΔE 0.073
- Dark Indigo #1F0954 ΔE 0.074
- Rich Navy #001219 ΔE 0.076
Use #091D3A 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.