#575FA0
Closest named color: Dusky Blue (#475F94). oklch(50.9% 0.103 276.8), rgb(87, 95, 160).
Aa
White text reads best on this color (5.91:1).
About this color
#575FA0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.103 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.030 away. White text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.54:1 |
| White text | 5.91:1 |
Values
| HEX | #575FA0 |
| RGB | rgb(87, 95, 160) |
| HSL | hsl(233, 30%, 48%) |
| OKLCH | oklch(50.9% 0.103 276.8) |
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 #575FA0 | 5.91:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #575FA0 | 3.54:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #575FA0 text on white | 5.91:1 | AA | Lc 79.5 | Fine for body text |
| #575FA0 text on black | 3.54:1 | 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
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D4D8EC
oklch(88.5% 0.028 276.8)
-
Step 300
300
#B8BEE1
oklch(80.8% 0.05 277.6)
-
Step 400
400
#939CD3
oklch(70.6% 0.081 276.9)
-
Step 500
500
#7A83C7
oklch(63.1% 0.103 277.3)
-
Step 600
600
#636CB3
oklch(55.6% 0.11 276.7)
-
Step 700
700 (this color)
#575FA0
oklch(50.9% 0.103 276.8)
-
Step 800
800
#434A7D
oklch(42.7% 0.085 276.3)
-
Step 900
900
#393E65
oklch(37.8% 0.067 277.1)
-
Step 950
950
#21243B
oklch(26.9% 0.043 277.4)
#575FA0 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) | #4767A3 | 0.028 |
| Deuteranopia (no green cones) | #41619F | 0.028 |
| Tritanopia (no blue cones) | #3E6C78 | 0.090 |
| Achromatopsia (no color) | #646464 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #575FA0
#575FA0
oklch(50.9% 0.103 276.8)
- #776505
#776505
oklch(50.9% 0.103 96.6)
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 #575FA0, closest first.
No curated palette has a color within ΔE 0.04 of #575FA0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.030
- French Blue #436BAD ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.046
- Twilight #4E518B ΔE 0.050
- Denim #3B638C ΔE 0.052
- Dusk #4E5481 ΔE 0.057
- Muted Blue #3B719F ΔE 0.057
- Mid Blue #276AB3 ΔE 0.057
Use #575FA0 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.