#09427F
Closest named color: Twilight Blue (#0A437A). oklch(38.2% 0.117 254.8), rgb(9, 66, 127).
Aa
White text reads best on this color (10.01:1).
About this color
#09427F is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.117 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.009 away. White text reads best on it, at 10.01:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.09:1 |
| White text | 10.01:1 |
Values
| HEX | #09427F |
| RGB | rgb(9, 66, 127) |
| HSL | hsl(211, 87%, 27%) |
| OKLCH | oklch(38.2% 0.117 254.8) |
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 #09427F | 10.01:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #09427F | 2.09:1 | Fails | Lc 11.2 | Not readable |
| #09427F text on white | 10.01:1 | AAA | Lc 92.7 | Preferred for body text |
| #09427F text on black | 2.09:1 | Fails | Lc -9.7 | 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 900.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C4DBFA
oklch(88.4% 0.05 255.9)
-
Step 300
300
#9AC4F9
oklch(80.9% 0.088 254.5)
-
Step 400
400
#60A3F6
oklch(70.7% 0.14 254.7)
-
Step 500
500
#2C89F2
oklch(63.1% 0.179 254.7)
-
Step 600
600
#0071DA
oklch(55.6% 0.182 254.8)
-
Step 700
700
#005FB8
oklch(49.1% 0.16 254.6)
-
Step 800
800
#004D99
oklch(42.7% 0.14 255)
-
Step 900
900 (this color)
#09427F
oklch(38.2% 0.117 254.8)
-
Step 950
950
#082649
oklch(26.9% 0.074 254.8)
#09427F 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) | #204881 | 0.026 |
| Deuteranopia (no green cones) | #003E7E | 0.013 |
| Tritanopia (no blue cones) | #00515A | 0.088 |
| Achromatopsia (no color) | #424242 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09427F
#09427F
oklch(38.2% 0.117 254.8)
- #5C3B00
#5C3B00
oklch(38.2% 0.081 73.9)
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 #09427F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.009
- Cobalt #1E488F ΔE 0.035
- Light Navy #155084 ΔE 0.043
- Marine Blue #01386A ΔE 0.046
- Deep Sea Blue #015482 ΔE 0.053
- Dusk Blue #26538D ΔE 0.060
- Dark Grey Blue #29465B ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.073
Use #09427F 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.