#091F2E
Closest named color: Rich Black (#0D1B2A). oklch(23% 0.04 241.3), rgb(9, 31, 46).
Aa
White text reads best on this color (16.83:1).
About this color
#091F2E is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.040 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.015 away. White text reads best on it, at 16.83:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.24:1 |
| White text | 16.83:1 |
Values
| HEX | #091F2E |
| RGB | rgb(9, 31, 46) |
| HSL | hsl(204, 67%, 11%) |
| OKLCH | oklch(23% 0.04 241.3) |
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 #091F2E | 16.83:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #091F2E | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #091F2E text on white | 16.83:1 | AAA | Lc 103.7 | Preferred for body text |
| #091F2E 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE9
oklch(88.5% 0.026 239.1)
-
Step 300
300
#A6C5DD
oklch(80.9% 0.048 241.5)
-
Step 400
400
#75A7CC
oklch(70.7% 0.076 241.2)
-
Step 500
500
#4F91BF
oklch(63.2% 0.097 241)
-
Step 600
600
#2F7AAB
oklch(55.6% 0.106 241.2)
-
Step 700
700
#216793
oklch(49.2% 0.098 240.9)
-
Step 800
800
#1E5477
oklch(42.7% 0.081 241)
-
Step 900
900
#1F4560
oklch(37.6% 0.063 242.1)
-
Step 950
950 (this color)
#091F2E
oklch(23% 0.04 241.3)
#091F2E 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) | #181F2F | 0.020 |
| Deuteranopia (no green cones) | #131B2E | 0.018 |
| Tritanopia (no blue cones) | #002324 | 0.030 |
| Achromatopsia (no color) | #1D1D1D | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #091F2E
#091F2E
oklch(23% 0.04 241.3)
- #2A1807
#2A1807
oklch(22.9% 0.04 62.2)
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 #091F2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.015
- Dark #1B2431 ΔE 0.032
- Oxford Blue #1B263B ΔE 0.042
- Jet #212529 ΔE 0.045
- Rich Navy #001219 ΔE 0.063
- Navy Blue #001146 ΔE 0.069
- Space Cadet #2B2D42 ΔE 0.079
- Almost Black #070D0D ΔE 0.085
Use #091F2E 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.