#09153A
Closest named color: Navy Blue (#001146). oklch(21.2% 0.074 266.4), rgb(9, 21, 58).
Aa
White text reads best on this color (17.79:1).
About this color
#09153A is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.074 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.029 away. White text reads best on it, at 17.79:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.17:1 |
| White text | 17.79:1 |
Values
| HEX | #09153A |
| RGB | rgb(9, 21, 58) |
| HSL | hsl(225, 73%, 13%) |
| OKLCH | oklch(21.2% 0.074 266.4) |
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 #09153A | 17.79:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #09153A | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #09153A text on white | 17.79:1 | AAA | Lc 104.4 | Preferred for body text |
| #09153A text on black | 1.17:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CAD9FA
oklch(88.5% 0.048 266)
-
Step 300
300
#A7C0FA
oklch(81% 0.087 266.4)
-
Step 400
400
#789DF7
oklch(70.8% 0.139 266)
-
Step 500
500
#5781F4
oklch(63.1% 0.178 266.3)
-
Step 600
600
#3F67E3
oklch(55.7% 0.194 266.5)
-
Step 700
700
#3155C5
oklch(49.2% 0.18 266.2)
-
Step 800
800
#29469F
oklch(42.7% 0.149 266.4)
-
Step 900
900
#253C7E
oklch(37.7% 0.115 266.4)
-
Step 950
950 (this color)
#09153A
oklch(21.2% 0.074 266.4)
#09153A 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) | #001A3B | 0.017 |
| Deuteranopia (no green cones) | #001639 | 0.012 |
| Tritanopia (no blue cones) | #001E24 | 0.060 |
| Achromatopsia (no color) | #181818 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09153A
#09153A
oklch(21.2% 0.074 266.4)
- #211700
#211700
oklch(21.1% 0.043 87.4)
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 #09153A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.029
- Rich Black #0D1B2A ΔE 0.041
- Night Blue #040348 ΔE 0.051
- Dark Navy #000435 ΔE 0.057
- Dark Indigo #1F0954 ΔE 0.064
- Dark #1B2431 ΔE 0.065
- Oxford Blue #1B263B ΔE 0.065
- Very Dark Blue #000133 ΔE 0.068
Use #09153A 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.