#657ACC#657ACC

#657ACC is a mid, vivid blue. Relative luminance 0.210; OKLCH L 60.0% C 0.127 H 271.3°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#657ACC
RGB	rgb(101, 122, 204)
HSL	hsl(228, 50%, 60%)
HSV	hsv(228, 50%, 80%)
CMYK	cmyk(50.5%, 40.2%, 0%, 20%)
CIE-LAB	lab(53.00, 15.17, -44.96)
CIE-LCH	lch(53.00, 47.46, 288.65°)
OKLab	oklab(60.03% 0.0029 -0.1273)
OKLCH	oklch(60.03% 0.127 271.3)
XYZ	xyz(23.2219, 21.0439, 59.9533)
Luminance	0.2104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657ACC #CCB765

analogous

#65AECC #657ACC #8465CC

triadic

#657ACC #CC657A #7ACC65

tetradic

#657ACC #CC65AE #CCB765 #65CC84

square

#657ACC #CC65AE #CCB765 #65CC84

split-complementary

#657ACC #CC8465 #AECC65

monochromatic

#2D4089 #3D56B7 #657ACC #93A2DB #C1C9EA

Accessibility & contrast

On white

4.03

#657ACC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#657ACC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657ACC

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657ACC	#FFFFFF	#000000	##000000
##657ACC	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5983CF

Deuteranopia (green-blind)

#4F7ACA

Tritanopia (blue-blind)

#398B99

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #657acc;
/* rgb */ color: rgb(101, 122, 204);
/* oklch */ color: oklch(60.0% 0.127 271.3);

Tailwind

colors: {
  custom: {
    50: '#97a0dc',
    500: '#657acc',
    950: '#000000',
  },
}

SCSS

$custom: #657acc;
$custom-light: #97a0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#657acc",
  "rgb": {
    "r": 101,
    "g": 122,
    "b": 204
  },
  "hsl": {
    "h": 227.767,
    "s": 50.244,
    "l": 59.804
  },
  "oklch": {
    "l": 0.60031,
    "c": 0.12732,
    "h": 271.3
  },
  "luminance": 0.21045
}

Semantic roles & 50–950 ramp

primary

#657ACC

secondary

#DAD2B2

accent

#BD4EDA

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #657ACC

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

Preview Lab → · Contrast checker → · Palette generator →