#57A3FD
Closest named color: Cornflower Blue (#6495ED). oklch(70.7% 0.153 254.1), rgb(87, 163, 253).
Aa
Black text reads best on this color (8.06:1).
About this color
#57A3FD is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.153 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.039 away. Black text reads best on it, at 8.06:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.06:1 |
| White text | 2.60:1 |
Values
| HEX | #57A3FD |
| RGB | rgb(87, 163, 253) |
| HSL | hsl(213, 98%, 67%) |
| OKLCH | oklch(70.7% 0.153 254.1) |
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 #57A3FD | 2.60:1 | Fails | Lc -55.7 | Large or bold text, headings |
| Black text on #57A3FD | 8.06:1 | AAA | Lc 53.4 | Large or bold text, headings |
| #57A3FD text on white | 2.60:1 | Fails | Lc 50.6 | Large or bold text, headings |
| #57A3FD text on black | 8.06:1 | AAA | Lc -51.3 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFD
oklch(93.6% 0.028 256.5)
-
Step 200
200
#C2DCFC
oklch(88.6% 0.052 253.7)
-
Step 300
300
#96C4FD
oklch(80.9% 0.095 254.2)
-
Step 400
400 (this color)
#57A3FD
oklch(70.7% 0.153 254.1)
-
Step 500
500
#1288FB
oklch(63.1% 0.195 254.2)
-
Step 600
600
#0072D7
oklch(55.6% 0.177 254)
-
Step 700
700
#005FB6
oklch(49% 0.157 254.2)
-
Step 800
800
#004E97
oklch(42.8% 0.136 254.1)
-
Step 900
900
#00417F
oklch(37.8% 0.12 253.9)
-
Step 950
950
#03264C
oklch(26.9% 0.08 254)
#57A3FD 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) | #7BA9FF | 0.041 |
| Deuteranopia (no green cones) | #6499FB | 0.027 |
| Tritanopia (no blue cones) | #00B8C4 | 0.121 |
| Achromatopsia (no color) | #A0A0A0 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57A3FD
#57A3FD
oklch(70.7% 0.153 254.1)
- #D79000
#D79000
oklch(70.7% 0.15 74.1)
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 #57A3FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.039
- Chefchaouen Blue #4895EF ΔE 0.044
- Periwinkle Blue #8F99FB ΔE 0.062
- Dodger Blue #1E90FF ΔE 0.067
- Dark Sky Blue #448EE4 ΔE 0.067
- Soft Blue #6488EA ΔE 0.070
- Deep Sky Blue #00BFFF ΔE 0.076
- Perrywinkle #8F8CE7 ΔE 0.080
Use #57A3FD 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.