#557ADC#557ADC

#557ADC is a mid, vivid blue. Relative luminance 0.210; OKLCH L 60.1% C 0.155 H 266.3°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#557ADC
RGB	rgb(85, 122, 220)
HSL	hsl(224, 66%, 60%)
HSV	hsv(224, 61%, 86%)
CMYK	cmyk(61.4%, 44.5%, 0%, 13.7%)
CIE-LAB	lab(52.97, 17.08, -54.12)
CIE-LCH	lch(52.97, 56.75, 287.52°)
OKLab	oklab(60.05% -0.01 -0.1545)
OKLCH	oklch(60.05% 0.155 266.3)
XYZ	xyz(23.6197, 21.0156, 70.5080)
Luminance	0.2102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557ADC #DCB755

analogous

#55BDDC #557ADC #7455DC

triadic

#557ADC #DC557A #7ADC55

tetradic

#557ADC #DC55BD #DCB755 #55DC74

square

#557ADC #DC55BD #DCB755 #55DC74

split-complementary

#557ADC #DC7455 #BDDC55

monochromatic

#1F4097 #2A56CA #557ADC #88A2E6 #BBC9F1

Accessibility & contrast

On white

4.04

#557ADC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#557ADC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557ADC

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557ADC	#FFFFFF	#000000	##000000
##557ADC	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C85E0

Deuteranopia (green-blind)

#3779DA

Tritanopia (blue-blind)

#0090A0

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557adc;
/* rgb */ color: rgb(85, 122, 220);
/* oklch */ color: oklch(60.1% 0.155 266.3);

Tailwind

colors: {
  custom: {
    50: '#90a0e7',
    500: '#557adc',
    950: '#000000',
  },
}

SCSS

$custom: #557adc;
$custom-light: #90a0e7;
$custom-dark: #000000;

JSON

{
  "hex": "#557adc",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 220
  },
  "hsl": {
    "h": 223.556,
    "s": 65.854,
    "l": 59.804
  },
  "oklch": {
    "l": 0.60051,
    "c": 0.15479,
    "h": 266.3
  },
  "luminance": 0.21018
}

Semantic roles & 50–950 ramp

primary

#557ADC

secondary

#E0D2AC

accent

#BA3FE9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557ADC

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

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