#27457A
Closest named color: Twilight Blue (#0A437A). oklch(39.6% 0.097 260.9), rgb(39, 69, 122).
Aa
White text reads best on this color (9.46:1).
About this color
#27457A is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.097 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.024 away. White text reads best on it, at 9.46:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.21:1 |
| White text | 9.46:1 |
Values
| HEX | #27457A |
| RGB | rgb(39, 69, 122) |
| HSL | hsl(218, 52%, 32%) |
| OKLCH | oklch(39.6% 0.097 260.9) |
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 #27457A | 9.46:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #27457A | 2.21:1 | Fails | Lc 12.3 | Not readable |
| #27457A text on white | 9.46:1 | AAA | Lc 91.7 | Preferred for body text |
| #27457A text on black | 2.21:1 | Fails | Lc -10.7 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CADAF5
oklch(88.5% 0.041 260.9)
-
Step 300
300
#A6C2F0
oklch(80.9% 0.072 260.3)
-
Step 400
400
#77A1E9
oklch(70.8% 0.116 260.8)
-
Step 500
500
#5387E2
oklch(63% 0.148 260.8)
-
Step 600
600
#386FD0
oklch(55.6% 0.161 260.8)
-
Step 700
700
#2B5CB4
oklch(49.1% 0.15 261)
-
Step 800
800
#244C92
oklch(42.8% 0.124 260.7)
-
Step 900
900 (this color)
#27457A
oklch(39.6% 0.097 260.9)
-
Step 950
950
#142644
oklch(27% 0.061 260.1)
#27457A 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) | #2D4A7C | 0.017 |
| Deuteranopia (no green cones) | #204279 | 0.012 |
| Tritanopia (no blue cones) | #005159 | 0.080 |
| Achromatopsia (no color) | #464646 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27457A
#27457A
oklch(39.6% 0.097 260.9)
- #5D4100
#5D4100
oklch(39.6% 0.082 80.8)
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 #27457A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.024
- Light Navy #155084 ΔE 0.034
- Cobalt #1E488F ΔE 0.035
- Deep Sea Blue #015482 ΔE 0.045
- Dusk Blue #26538D ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.058
- Marine Blue #01386A ΔE 0.058
Use #27457A 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.