#09549D
Closest named color: Dusk Blue (#26538D). oklch(44.7% 0.136 253.8), rgb(9, 84, 157).
Aa
White text reads best on this color (7.59:1).
About this color
#09549D is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.136 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.029 away. White text reads best on it, at 7.59:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.76:1 |
| White text | 7.59:1 |
Values
| HEX | #09549D |
| RGB | rgb(9, 84, 157) |
| HSL | hsl(210, 89%, 33%) |
| OKLCH | oklch(44.7% 0.136 253.8) |
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 #09549D | 7.59:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #09549D | 2.76:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #09549D text on white | 7.59:1 | AAA | Lc 85.8 | Fine for body text |
| #09549D text on black | 2.76:1 | Fails | Lc -16.3 | Dividers and decoration only |
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 800.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C6DBF6
oklch(88.4% 0.044 254.8)
-
Step 300
300
#9DC4F3
oklch(80.9% 0.079 253.4)
-
Step 400
400
#66A4EE
oklch(70.8% 0.127 253.8)
-
Step 500
500
#378AE8
oklch(63% 0.162 254.1)
-
Step 600
600
#0072D6
oklch(55.6% 0.176 253.8)
-
Step 700
700
#0060B5
oklch(49.2% 0.155 253.6)
-
Step 800
800 (this color)
#09549D
oklch(44.7% 0.136 253.8)
-
Step 900
900
#0F4278
oklch(37.8% 0.106 253.7)
-
Step 950
950
#0B2746
oklch(27% 0.067 253.4)
#09549D 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) | #2B5BA0 | 0.031 |
| Deuteranopia (no green cones) | #014E9C | 0.018 |
| Tritanopia (no blue cones) | #006671 | 0.101 |
| Achromatopsia (no color) | #545454 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09549D
#09549D
oklch(44.7% 0.136 253.8)
- #734B00
#734B00
oklch(44.7% 0.095 74.1)
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 #09549D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.029
- Cobalt #1E488F ΔE 0.038
- Light Navy #155084 ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.049
- Peacock Blue #016795 ΔE 0.060
- Dusky Blue #475F94 ΔE 0.066
Use #09549D 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.