#557DC8#557DC8

#557DC8 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.5% C 0.124 H 262.0°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#557DC8
RGB	rgb(85, 125, 200)
HSL	hsl(219, 51%, 56%)
HSV	hsv(219, 58%, 78%)
CMYK	cmyk(57.5%, 37.5%, 0%, 21.6%)
CIE-LAB	lab(52.69, 8.57, -43.23)
CIE-LCH	lch(52.69, 44.07, 281.21°)
OKLab	oklab(59.49% -0.0171 -0.1225)
OKLCH	oklch(59.49% 0.124 262)
XYZ	xyz(21.5017, 20.7669, 57.5077)
Luminance	0.2077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DC8 #C8A055

analogous

#55B7C8 #557DC8 #6655C8

triadic

#557DC8 #C8557D #7DC855

tetradic

#557DC8 #C855B7 #C8A055 #55C866

square

#557DC8 #C855B7 #C8A055 #55C866

split-complementary

#557DC8 #C86655 #B7C855

monochromatic

#28457B #375EA9 #557DC8 #83A0D7 #B1C4E6

Accessibility & contrast

On white

4.07

#557DC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#557DC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DC8

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DC8	#FFFFFF	#000000	##000000
##557DC8	1.00	4.07	5.15	5.15
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E84CB

Deuteranopia (green-blind)

#4F79C6

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557dc8;
/* rgb */ color: rgb(85, 125, 200);
/* oklch */ color: oklch(59.5% 0.124 262.0);

Tailwind

colors: {
  custom: {
    50: '#8da2d9',
    500: '#557dc8',
    950: '#000000',
  },
}

SCSS

$custom: #557dc8;
$custom-light: #8da2d9;
$custom-dark: #000000;

JSON

{
  "hex": "#557dc8",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 200
  },
  "hsl": {
    "h": 219.13,
    "s": 51.111,
    "l": 55.882
  },
  "oklch": {
    "l": 0.59485,
    "c": 0.12368,
    "h": 262
  },
  "luminance": 0.20769
}

Semantic roles & 50–950 ramp

primary

#557DC8

secondary

#D4C4A5

accent

#A94DDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #557DC8

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

Preview Lab → · Contrast checker → · Palette generator →