#576BF4
Closest named color: Neon Blue (#4361EE). oklch(58.9% 0.205 272.2), rgb(87, 107, 244).
Aa
Black text reads best on this color (4.81:1).
About this color
#576BF4 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.205 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.037 away. Black text reads best on it, at 4.81:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.205) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.81:1 |
| White text | 4.36:1 |
Values
| HEX | #576BF4 |
| RGB | rgb(87, 107, 244) |
| HSL | hsl(232, 88%, 65%) |
| OKLCH | oklch(58.9% 0.205 272.2) |
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 #576BF4 | 4.36:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #576BF4 | 4.81:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #576BF4 text on white | 4.36:1 | AA large text | Lc 69.8 | Content text, not long reading |
| #576BF4 text on black | 4.81:1 | AA | Lc -31.9 | Non-text elements, placeholder text |
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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FC
oklch(93.5% 0.027 271.9)
-
Step 200
200
#CDD8FC
oklch(88.5% 0.051 271.9)
-
Step 300
300
#ACBDFD
oklch(80.9% 0.093 272.7)
-
Step 400
400
#8199FC
oklch(70.8% 0.147 271.9)
-
Step 500
500
#657BF9
oklch(63% 0.188 272.4)
-
Step 600
600 (this color)
#576BF4
oklch(58.9% 0.205 272.2)
-
Step 700
700
#404ECA
oklch(49% 0.191 272.3)
-
Step 800
800
#3441A3
oklch(42.6% 0.158 272.1)
-
Step 900
900
#2D3982
oklch(37.8% 0.123 272.2)
-
Step 950
950
#1A224C
oklch(27.1% 0.078 272.1)
#576BF4 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) | #0080F9 | 0.064 |
| Deuteranopia (no green cones) | #0072F1 | 0.055 |
| Tritanopia (no blue cones) | #008CA5 | 0.170 |
| Achromatopsia (no color) | #797979 | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #576BF4
#576BF4
oklch(58.9% 0.205 272.2)
- #977A00
#977A00
oklch(59% 0.121 92.1)
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 #576BF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.037
- Royal Blue #4169E1 ΔE 0.039
- Cornflower #6A79F7 ΔE 0.044
- Medium Slate Blue #7B68EE ΔE 0.050
- Clear Blue #247AFD ΔE 0.050
- Cerulean Blue #056EEE ΔE 0.056
- Dark Periwinkle #665FD1 ΔE 0.060
- Warm Blue #4B57DB ΔE 0.063
Use #576BF4 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.