#091C2A
Closest named color: Rich Black (#0D1B2A). oklch(21.8% 0.037 242.9), rgb(9, 28, 42).
Aa
White text reads best on this color (17.33:1).
About this color
#091C2A is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.037 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.006 away. White text reads best on it, at 17.33:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.33:1 |
Values
| HEX | #091C2A |
| RGB | rgb(9, 28, 42) |
| HSL | hsl(205, 65%, 10%) |
| OKLCH | oklch(21.8% 0.037 242.9) |
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 #091C2A | 17.33:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #091C2A | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #091C2A text on white | 17.33:1 | AAA | Lc 104.1 | Preferred for body text |
| #091C2A text on black | 1.21:1 | 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
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300
#A9C5DB
oklch(81% 0.043 241.8)
-
Step 400
400
#7AA6C9
oklch(70.6% 0.07 242.9)
-
Step 500
500
#5690BC
oklch(63.2% 0.09 242.7)
-
Step 600
600
#3979A8
oklch(55.5% 0.098 243.1)
-
Step 700
700
#2B6690
oklch(49.1% 0.091 242.8)
-
Step 800
800
#255375
oklch(42.6% 0.076 243.3)
-
Step 900
900
#23455E
oklch(37.7% 0.059 242.4)
-
Step 950
950 (this color)
#091C2A
oklch(21.8% 0.037 242.9)
#091C2A 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) | #161C2B | 0.018 |
| Deuteranopia (no green cones) | #11192A | 0.014 |
| Tritanopia (no blue cones) | #001F21 | 0.027 |
| Achromatopsia (no color) | #1A1A1A | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #091C2A
#091C2A
oklch(21.8% 0.037 242.9)
- #261607
#261607
oklch(21.8% 0.037 62.6)
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 #091C2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.006
- Dark #1B2431 ΔE 0.042
- Rich Navy #001219 ΔE 0.051
- Jet #212529 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.053
- Navy Blue #001146 ΔE 0.069
- Almost Black #070D0D ΔE 0.073
- Dark Navy #000435 ΔE 0.085
Use #091C2A 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.