#657FDF#657FDF

#657FDF is a light, vivid blue. Relative luminance 0.233; OKLCH L 62.2% C 0.148 H 270.2°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#657FDF
RGB	rgb(101, 127, 223)
HSL	hsl(227, 66%, 64%)
HSV	hsv(227, 55%, 87%)
CMYK	cmyk(54.7%, 43%, 0%, 12.5%)
CIE-LAB	lab(55.35, 18.15, -51.95)
CIE-LCH	lch(55.35, 55.03, 289.26°)
OKLab	oklab(62.17% 0.0006 -0.1477)
OKLCH	oklch(62.17% 0.148 270.2)
XYZ	xyz(26.2711, 23.2712, 72.9052)
Luminance	0.2327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657FDF #DFC565

analogous

#65BCDF #657FDF #8865DF

triadic

#657FDF #DF657F #7FDF65

tetradic

#657FDF #DF65BC #DFC565 #65DF88

square

#657FDF #DF65BC #DFC565 #65DF88

split-complementary

#657FDF #DF8865 #BCDF65

monochromatic

#233FA7 #3255D4 #657FDF #98A9EA #CAD3F4

Accessibility & contrast

On white

3.71

#657FDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#657FDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657FDF

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657FDF	#FFFFFF	#000000	##000000
##657FDF	1.00	3.71	5.65	5.65
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#568AE3

Deuteranopia (green-blind)

#4780DD

Tritanopia (blue-blind)

#2194A4

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #657fdf;
/* rgb */ color: rgb(101, 127, 223);
/* oklch */ color: oklch(62.2% 0.148 270.2);

Tailwind

colors: {
  custom: {
    50: '#99a3e9',
    500: '#657fdf',
    950: '#000000',
  },
}

SCSS

$custom: #657fdf;
$custom-light: #99a3e9;
$custom-dark: #000000;

JSON

{
  "hex": "#657fdf",
  "rgb": {
    "r": 101,
    "g": 127,
    "b": 223
  },
  "hsl": {
    "h": 227.213,
    "s": 65.591,
    "l": 63.529
  },
  "oklch": {
    "l": 0.62168,
    "c": 0.14771,
    "h": 270.2
  },
  "luminance": 0.23273
}

Semantic roles & 50–950 ramp

primary

#657FDF

secondary

#E6DCBA

accent

#A718CD

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0F0F16

muted

#7E7F84

Preview Lab

Preview with #657FDF

Body copy rendered with the generated semantic roles for this colour.

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