#57609B
Closest named color: Dusky Blue (#475F94). oklch(50.8% 0.094 275.9), rgb(87, 96, 155).
Aa
White text reads best on this color (5.91:1).
About this color
#57609B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.094 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.025 away. White text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.55:1 |
| White text | 5.91:1 |
Values
| HEX | #57609B |
| RGB | rgb(87, 96, 155) |
| HSL | hsl(232, 28%, 47%) |
| OKLCH | oklch(50.8% 0.094 275.9) |
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 #57609B | 5.91:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #57609B | 3.55:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #57609B text on white | 5.91:1 | AA | Lc 79.5 | Fine for body text |
| #57609B text on black | 3.55:1 | AA large text | Lc -22.3 | 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 700.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EA
oklch(88.5% 0.025 275.9)
-
Step 300
300
#B8BFDF
oklch(81% 0.046 275.6)
-
Step 400
400
#949DCE
oklch(70.7% 0.072 276.3)
-
Step 500
500
#7A84C2
oklch(63% 0.094 276.3)
-
Step 600
600
#636DAE
oklch(55.5% 0.102 275.9)
-
Step 700
700 (this color)
#57609B
oklch(50.8% 0.094 275.9)
-
Step 800
800
#434B79
oklch(42.7% 0.077 275.2)
-
Step 900
900
#393F62
oklch(37.9% 0.06 275.7)
-
Step 950
950
#212539
oklch(27% 0.038 274.9)
#57609B 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) | #4B679D | 0.023 |
| Deuteranopia (no green cones) | #46629A | 0.023 |
| Tritanopia (no blue cones) | #416C76 | 0.083 |
| Achromatopsia (no color) | #646464 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57609B
#57609B
oklch(50.8% 0.094 275.9)
- #766519
#766519
oklch(50.9% 0.094 95.9)
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 #57609B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.025
- French Blue #436BAD ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.043
- Denim #3B638C ΔE 0.045
- Twilight #4E518B ΔE 0.049
- Dusk #4E5481 ΔE 0.052
- Muted Blue #3B719F ΔE 0.053
- Flat Blue #3C73A8 ΔE 0.057
Use #57609B 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.