#657CCF#657CCF

#657CCF is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.6% C 0.129 H 270.5°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#657CCF
RGB	rgb(101, 124, 207)
HSL	hsl(227, 52%, 60%)
HSV	hsv(227, 51%, 81%)
CMYK	cmyk(51.2%, 40.1%, 0%, 18.8%)
CIE-LAB	lab(53.69, 14.90, -45.57)
CIE-LCH	lch(53.69, 47.94, 288.11°)
OKLab	oklab(60.61% 0.0011 -0.129)
OKLCH	oklch(60.61% 0.129 270.5)
XYZ	xyz(23.8333, 21.6854, 61.9492)
Luminance	0.2169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CCF #CFB865

analogous

#65B1CF #657CCF #8365CF

triadic

#657CCF #CF657C #7CCF65

tetradic

#657CCF #CF65B1 #CFB865 #65CF83

square

#657CCF #CF65B1 #CFB865 #65CF83

split-complementary

#657CCF #CF8365 #B1CF65

monochromatic

#2C418D #3B57BC #657CCF #94A4DE #C2CBEC

Accessibility & contrast

On white

3.93

#657CCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#657CCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CCF

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CCF	#FFFFFF	#000000	##000000
##657CCF	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B85D2

Deuteranopia (green-blind)

#4F7CCD

Tritanopia (blue-blind)

#368E9B

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #657ccf;
/* rgb */ color: rgb(101, 124, 207);
/* oklch */ color: oklch(60.6% 0.129 270.5);

Tailwind

colors: {
  custom: {
    50: '#97a1de',
    500: '#657ccf',
    950: '#000000',
  },
}

SCSS

$custom: #657ccf;
$custom-light: #97a1de;
$custom-dark: #000000;

JSON

{
  "hex": "#657ccf",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 207
  },
  "hsl": {
    "h": 226.981,
    "s": 52.475,
    "l": 60.392
  },
  "oklch": {
    "l": 0.60615,
    "c": 0.12904,
    "h": 270.5
  },
  "luminance": 0.21687
}

Semantic roles & 50–950 ramp

primary

#657CCF

secondary

#DCD3B4

accent

#9E26C0

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #657CCF

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

Preview Lab → · Contrast checker → · Palette generator →