#575DD8
Closest named color: Warm Blue (#4B57DB). oklch(54.3% 0.185 276.2), rgb(87, 93, 216).
Aa
White text reads best on this color (5.29:1).
About this color
#575DD8 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.185 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.023 away. White text reads best on it, at 5.29:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.185) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #575DD8 |
| RGB | rgb(87, 93, 216) |
| HSL | hsl(237, 62%, 59%) |
| OKLCH | oklch(54.3% 0.185 276.2) |
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 #575DD8 | 5.29:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #575DD8 | 3.96:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #575DD8 text on white | 5.29:1 | AA | Lc 76.0 | Fine for body text |
| #575DD8 text on black | 3.96:1 | AA large text | Lc -25.8 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D0D7F8
oklch(88.4% 0.046 276)
-
Step 300
300
#B2BDF7
oklch(81% 0.083 276.1)
-
Step 400
400
#8B98F3
oklch(70.8% 0.133 276.3)
-
Step 500
500
#707BEE
oklch(63% 0.171 276.2)
-
Step 600
600 (this color)
#575DD8
oklch(54.3% 0.185 276.2)
-
Step 700
700
#4B4FBF
oklch(49% 0.172 276.4)
-
Step 800
800
#3D429B
oklch(42.7% 0.143 276.1)
-
Step 900
900
#33397B
oklch(37.7% 0.111 275.8)
-
Step 950
950
#1E2248
oklch(27% 0.07 276.2)
#575DD8 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) | #0071DC | 0.069 |
| Deuteranopia (no green cones) | #0066D5 | 0.064 |
| Tritanopia (no blue cones) | #007A91 | 0.159 |
| Achromatopsia (no color) | #6B6B6B | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #575DD8
#575DD8
oklch(54.3% 0.185 276.2)
- #836E00
#836E00
oklch(54.2% 0.111 95.8)
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 #575DD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.023
- Dark Periwinkle #665FD1 ΔE 0.025
- Slate Blue #6A5ACD ΔE 0.032
- Light Indigo #6D5ACF ΔE 0.035
- Iris #6258C4 ΔE 0.035
- Royal Blue #4169E1 ΔE 0.036
- Neon Blue #4361EE ΔE 0.040
- Azul #1D5DEC ΔE 0.062
Use #575DD8 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.