#575AE7
Closest named color: Warm Blue (#4B57DB). oklch(54.9% 0.208 276.2), rgb(87, 90, 231).
Aa
White text reads best on this color (5.22:1).
About this color
#575AE7 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.208 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.026 away. White text reads best on it, at 5.22:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.208) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 4.02:1 |
| White text | 5.22:1 |
Values
| HEX | #575AE7 |
| RGB | rgb(87, 90, 231) |
| HSL | hsl(239, 75%, 62%) |
| OKLCH | oklch(54.9% 0.208 276.2) |
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 #575AE7 | 5.22:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #575AE7 | 4.02:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #575AE7 text on white | 5.22:1 | AA | Lc 75.4 | Fine for body text |
| #575AE7 text on black | 4.02:1 | AA large text | Lc -26.3 | 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 600.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FD
oklch(93.7% 0.027 276.8)
-
Step 200
200
#CFD7FC
oklch(88.5% 0.052 275.7)
-
Step 300
300
#B0BCFD
oklch(80.9% 0.093 276)
-
Step 400
400
#8896FD
oklch(70.7% 0.151 276)
-
Step 500
500
#6E78FA
oklch(63.1% 0.191 276.2)
-
Step 600
600 (this color)
#575AE7
oklch(54.9% 0.208 276.2)
-
Step 700
700
#494BCB
oklch(49.1% 0.193 275.9)
-
Step 800
800
#3C3EA4
oklch(42.7% 0.161 276.3)
-
Step 900
900
#323782
oklch(37.8% 0.124 275.8)
-
Step 950
950
#1D214C
oklch(27.1% 0.078 275.8)
#575AE7 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) | #0073EC | 0.074 |
| Deuteranopia (no green cones) | #0066E4 | 0.063 |
| Tritanopia (no blue cones) | #007D98 | 0.174 |
| Achromatopsia (no color) | #6C6C6C | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #575AE7
#575AE7
oklch(54.9% 0.208 276.2)
- #857000
#857000
oklch(54.9% 0.113 96)
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 #575AE7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.026
- Neon Blue #4361EE ΔE 0.028
- Royal Blue #4169E1 ΔE 0.041
- Dark Periwinkle #665FD1 ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.049
- Azul #1D5DEC ΔE 0.055
- Iris #6258C4 ΔE 0.056
Use #575AE7 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.