#091D39
Closest named color: Rich Black (#0D1B2A). oklch(23.2% 0.06 257.4), rgb(9, 29, 57).
Aa
White text reads best on this color (16.84:1).
About this color
#091D39 is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.060 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.029 away. White text reads best on it, at 16.84:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.24:1 |
| White text | 16.84:1 |
Values
| HEX | #091D39 |
| RGB | rgb(9, 29, 57) |
| HSL | hsl(215, 73%, 13%) |
| OKLCH | oklch(23.2% 0.06 257.4) |
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 #091D39 | 16.84:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #091D39 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #091D39 text on white | 16.84:1 | AAA | Lc 103.6 | Preferred for body text |
| #091D39 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
#C9DBF4
oklch(88.6% 0.04 256.6)
-
Step 300
300
#A4C3EF
oklch(81% 0.071 257.1)
-
Step 400
400
#72A2E7
oklch(70.6% 0.114 257.4)
-
Step 500
500
#4C89E0
oklch(63% 0.146 257.5)
-
Step 600
600
#2E71CE
oklch(55.6% 0.159 257.5)
-
Step 700
700
#205EB2
oklch(49% 0.148 257.4)
-
Step 800
800
#1D4D90
oklch(42.6% 0.122 257.6)
-
Step 900
900
#1E4173
oklch(37.7% 0.095 257.6)
-
Step 950
950 (this color)
#091D39
oklch(23.2% 0.06 257.4)
#091D39 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) | #0F1F3A | 0.011 |
| Deuteranopia (no green cones) | #071B38 | 0.008 |
| Tritanopia (no blue cones) | #002428 | 0.048 |
| Achromatopsia (no color) | #1D1D1D | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #091D39
#091D39
oklch(23.2% 0.06 257.4)
- #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 #091D39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.029
- Dark #1B2431 ΔE 0.041
- Oxford Blue #1B263B ΔE 0.041
- Navy Blue #001146 ΔE 0.048
- Jet #212529 ΔE 0.059
- Rich Navy #001219 ΔE 0.074
- Night Blue #040348 ΔE 0.074
- Dark Indigo #1F0954 ΔE 0.075
Use #091D39 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.