#575AAA
Closest named color: Iris (#6258C4). oklch(50.5% 0.125 279.3), rgb(87, 90, 170).
Aa
White text reads best on this color (6.09:1).
About this color
#575AAA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.125 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.045 away. White text reads best on it, at 6.09:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.44:1 |
| White text | 6.09:1 |
Values
| HEX | #575AAA |
| RGB | rgb(87, 90, 170) |
| HSL | hsl(238, 33%, 50%) |
| OKLCH | oklch(50.5% 0.125 279.3) |
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 #575AAA | 6.09:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #575AAA | 3.44:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #575AAA text on white | 6.09:1 | AA | Lc 80.2 | Fine for body text |
| #575AAA text on black | 3.44:1 | AA large text | Lc -21.6 | 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
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D4D7F0
oklch(88.5% 0.034 280.2)
-
Step 300
300
#B8BDE8
oklch(80.9% 0.061 279.7)
-
Step 400
400
#949ADC
oklch(70.7% 0.097 279.6)
-
Step 500
500
#7A80D3
oklch(63.1% 0.124 279.1)
-
Step 600
600
#6468C0
oklch(55.6% 0.135 279.1)
-
Step 700
700 (this color)
#575AAA
oklch(50.5% 0.125 279.3)
-
Step 800
800
#444786
oklch(42.7% 0.103 279)
-
Step 900
900
#393C6B
oklch(37.7% 0.08 279.1)
-
Step 950
950
#21233F
oklch(26.9% 0.052 279.2)
#575AAA 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) | #3865AD | 0.044 |
| Deuteranopia (no green cones) | #325FA8 | 0.045 |
| Tritanopia (no blue cones) | #386B7A | 0.109 |
| Achromatopsia (no color) | #626262 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #575AAA
#575AAA
oklch(50.5% 0.125 279.3)
- #736500
#736500
oklch(50.5% 0.105 99.8)
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 #575AAA, closest first.
No curated palette has a color within ΔE 0.04 of #575AAA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.045
- Dusky Blue #475F94 ΔE 0.046
- French Blue #436BAD ΔE 0.049
- Twilight #4E518B ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.055
- Mid Blue #276AB3 ΔE 0.060
- Slate Blue #6A5ACD ΔE 0.062
- Dark Periwinkle #665FD1 ΔE 0.066
Use #575AAA 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.