#657FDB#657FDB

#657FDB is a mid, vivid blue. Relative luminance 0.231; OKLCH L 61.9% C 0.142 H 270.0°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#657FDB
RGB	rgb(101, 127, 219)
HSL	hsl(227, 62%, 63%)
HSV	hsv(227, 54%, 86%)
CMYK	cmyk(53.9%, 42%, 0%, 14.1%)
CIE-LAB	lab(55.13, 16.88, -50.05)
CIE-LCH	lch(55.13, 52.82, 288.63°)
OKLab	oklab(61.93% -0.0001 -0.1421)
OKLCH	oklch(61.93% 0.142 270)
XYZ	xyz(25.7382, 23.0581, 70.0985)
Luminance	0.2306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657FDB #DBC165

analogous

#65BADB #657FDB #8665DB

triadic

#657FDB #DB657F #7FDB65

tetradic

#657FDB #DB65BA #DBC165 #65DB86

square

#657FDB #DB65BA #DBC165 #65DB86

split-complementary

#657FDB #DB8665 #BADB65

monochromatic

#2540A0 #3356CF #657FDB #97A8E7 #C8D1F2

Accessibility & contrast

On white

3.74

#657FDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#657FDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657FDB

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657FDB	#FFFFFF	#000000	##000000
##657FDB	1.00	3.74	5.61	5.61
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5889DF

Deuteranopia (green-blind)

#4A7FD9

Tritanopia (blue-blind)

#2793A2

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #657fdb;
/* rgb */ color: rgb(101, 127, 219);
/* oklch */ color: oklch(61.9% 0.142 270.0);

Tailwind

colors: {
  custom: {
    50: '#99a3e6',
    500: '#657fdb',
    950: '#000000',
  },
}

SCSS

$custom: #657fdb;
$custom-light: #99a3e6;
$custom-dark: #000000;

JSON

{
  "hex": "#657fdb",
  "rgb": {
    "r": 101,
    "g": 127,
    "b": 219
  },
  "hsl": {
    "h": 226.78,
    "s": 62.105,
    "l": 62.745
  },
  "oklch": {
    "l": 0.61929,
    "c": 0.14214,
    "h": 270
  },
  "luminance": 0.2306
}

Semantic roles & 50–950 ramp

primary

#657FDB

secondary

#E3DAB9

accent

#A31CCA

background

#F9FAFE

surface

#F2F3FC

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #657FDB

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

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