#557BD2#557BD2

#557BD2 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.6% C 0.140 H 264.7°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#557BD2
RGB	rgb(85, 123, 210)
HSL	hsl(222, 58%, 58%)
HSV	hsv(222, 60%, 82%)
CMYK	cmyk(59.5%, 41.4%, 0%, 17.6%)
CIE-LAB	lab(52.67, 13.11, -48.94)
CIE-LCH	lch(52.67, 50.67, 284.99°)
OKLab	oklab(59.64% -0.0128 -0.1392)
OKLCH	oklch(59.64% 0.14 264.7)
XYZ	xyz(22.4581, 20.7485, 63.7816)
Luminance	0.2075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557BD2 #D2AC55

analogous

#55BAD2 #557BD2 #6D55D2

triadic

#557BD2 #D2557B #7BD255

tetradic

#557BD2 #D255BA #D2AC55 #55D26D

square

#557BD2 #D255BA #D2AC55 #55D26D

split-complementary

#557BD2 #D26D55 #BAD255

monochromatic

#244388 #315AB9 #557BD2 #85A1DF #B6C6EC

Accessibility & contrast

On white

4.08

#557BD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#557BD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557BD2

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557BD2	#FFFFFF	#000000	##000000
##557BD2	1.00	4.08	5.15	5.15
#FFFFFF	4.08	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)

#5584D5

Deuteranopia (green-blind)

#4378D0

Tritanopia (blue-blind)

#008E9C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557bd2;
/* rgb */ color: rgb(85, 123, 210);
/* oklch */ color: oklch(59.6% 0.140 264.7);

Tailwind

colors: {
  custom: {
    50: '#8fa0e0',
    500: '#557bd2',
    950: '#000000',
  },
}

SCSS

$custom: #557bd2;
$custom-light: #8fa0e0;
$custom-dark: #000000;

JSON

{
  "hex": "#557bd2",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 210
  },
  "hsl": {
    "h": 221.76,
    "s": 58.14,
    "l": 57.843
  },
  "oklch": {
    "l": 0.59643,
    "c": 0.13983,
    "h": 264.7
  },
  "luminance": 0.2075
}

Semantic roles & 50–950 ramp

primary

#557BD2

secondary

#DACBA8

accent

#B246E1

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #557BD2

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

Preview Lab → · Contrast checker → · Palette generator →