#575CA7
Closest named color: Dusky Blue (#475F94). oklch(50.7% 0.118 278.4), rgb(87, 92, 167).
Aa
White text reads best on this color (6.01:1).
About this color
#575CA7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.118 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.040 away. White text reads best on it, at 6.01:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.49:1 |
| White text | 6.01:1 |
Values
| HEX | #575CA7 |
| RGB | rgb(87, 92, 167) |
| HSL | hsl(236, 31%, 50%) |
| OKLCH | oklch(50.7% 0.118 278.4) |
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 #575CA7 | 6.01:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #575CA7 | 3.49:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #575CA7 text on white | 6.01:1 | AA | Lc 79.9 | Fine for body text |
| #575CA7 text on black | 3.49:1 | AA large text | Lc -21.9 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D4D8EE
oklch(88.6% 0.03 277.6)
-
Step 300
300
#B8BEE6
oklch(81% 0.057 278.4)
-
Step 400
400
#939BD9
oklch(70.7% 0.091 278.1)
-
Step 500
500
#7A81CF
oklch(63.1% 0.117 278.6)
-
Step 600
600
#6469BC
oklch(55.6% 0.127 278.8)
-
Step 700
700 (this color)
#575CA7
oklch(50.7% 0.118 278.4)
-
Step 800
800
#444883
oklch(42.8% 0.097 278.5)
-
Step 900
900
#393D69
oklch(37.8% 0.075 278.2)
-
Step 950
950
#21243E
oklch(27.1% 0.048 277.6)
#575CA7 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) | #3E66AA | 0.038 |
| Deuteranopia (no green cones) | #3860A5 | 0.039 |
| Tritanopia (no blue cones) | #3A6C79 | 0.104 |
| Achromatopsia (no color) | #636363 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #575CA7
#575CA7
oklch(50.7% 0.118 278.4)
- #756500
#756500
oklch(50.7% 0.105 98.3)
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 #575CA7, closest first.
No curated palette has a color within ΔE 0.04 of #575CA7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.040
- French Blue #436BAD ΔE 0.044
- Iris #6258C4 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.051
- Twilight #4E518B ΔE 0.053
- Mid Blue #276AB3 ΔE 0.058
- Denim #3B638C ΔE 0.063
- Dusk #4E5481 ΔE 0.064
Use #575CA7 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.