#575EA5
Closest named color: Dusky Blue (#475F94). oklch(51% 0.112 277.4), rgb(87, 94, 165).
Aa
White text reads best on this color (5.91:1).
About this color
#575EA5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.112 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.036 away. White text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.54:1 |
| White text | 5.91:1 |
Values
| HEX | #575EA5 |
| RGB | rgb(87, 94, 165) |
| HSL | hsl(235, 31%, 49%) |
| OKLCH | oklch(51% 0.112 277.4) |
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 #575EA5 | 5.91:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #575EA5 | 3.54:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #575EA5 text on white | 5.91:1 | AA | Lc 79.5 | Fine for body text |
| #575EA5 text on black | 3.54:1 | AA large text | Lc -22.4 | 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
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D4D8ED
oklch(88.6% 0.029 277.2)
-
Step 300
300
#B7BEE4
oklch(80.9% 0.054 276.9)
-
Step 400
400
#939CD7
oklch(70.8% 0.087 277.2)
-
Step 500
500
#7982CC
oklch(63.1% 0.112 277.4)
-
Step 600
600
#636BB9
oklch(55.7% 0.12 277.3)
-
Step 700
700 (this color)
#575EA5
oklch(51% 0.112 277.4)
-
Step 800
800
#434981
oklch(42.8% 0.092 277.1)
-
Step 900
900
#383D67
oklch(37.6% 0.072 277.2)
-
Step 950
950
#21243D
oklch(27% 0.047 277.6)
#575EA5 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) | #4267A8 | 0.033 |
| Deuteranopia (no green cones) | #3C61A3 | 0.034 |
| Tritanopia (no blue cones) | #3B6D79 | 0.099 |
| Achromatopsia (no color) | #646464 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #575EA5
#575EA5
oklch(51% 0.112 277.4)
- #776500
#776500
oklch(50.9% 0.105 96.9)
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 #575EA5, closest first.
No curated palette has a color within ΔE 0.04 of #575EA5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.036
- French Blue #436BAD ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.050
- Twilight #4E518B ΔE 0.053
- Iris #6258C4 ΔE 0.056
- Mid Blue #276AB3 ΔE 0.056
- Denim #3B638C ΔE 0.058
- Flat Blue #3C73A8 ΔE 0.062
Use #575EA5 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.