#557CB0#557CB0

#557CB0 is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 58.0% C 0.092 H 255.9°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#557CB0
RGB	rgb(85, 124, 176)
HSL	hsl(214, 37%, 51%)
HSV	hsv(214, 52%, 69%)
CMYK	cmyk(51.7%, 29.5%, 0%, 31%)
CIE-LAB	lab(51.24, 1.42, -31.74)
CIE-LCH	lch(51.24, 31.77, 272.56°)
OKLab	oklab(57.97% -0.0223 -0.0891)
OKLCH	oklch(57.97% 0.092 255.9)
XYZ	xyz(18.7878, 19.4798, 43.8358)
Luminance	0.1948 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CB0 #B08955

analogous

#55A9B0 #557CB0 #5B55B0

triadic

#557CB0 #B0557C #7CB055

tetradic

#557CB0 #B055A9 #B08955 #55B05B

square

#557CB0 #B055A9 #B08955 #55B05B

split-complementary

#557CB0 #B05B55 #A9B055

monochromatic

#2C425F #3F5F88 #557CB0 #7F9CC3 #A9BCD7

Accessibility & contrast

On white

4.29

#557CB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#557CB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CB0

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CB0	#FFFFFF	#000000	##000000
##557CB0	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687FB2

Deuteranopia (green-blind)

#5C76AF

Tritanopia (blue-blind)

#28888E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #557cb0;
/* rgb */ color: rgb(85, 124, 176);
/* oklch */ color: oklch(58.0% 0.092 255.9);

Tailwind

colors: {
  custom: {
    50: '#8aa1c8',
    500: '#557cb0',
    950: '#000000',
  },
}

SCSS

$custom: #557cb0;
$custom-light: #8aa1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#557cb0",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 176
  },
  "hsl": {
    "h": 214.286,
    "s": 36.546,
    "l": 51.176
  },
  "oklch": {
    "l": 0.57974,
    "c": 0.09185,
    "h": 255.9
  },
  "luminance": 0.19481
}

Semantic roles & 50–950 ramp

primary

#557CB0

secondary

#C5B39C

accent

#9C5BCD

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F13

muted

#7D7E82

Preview Lab

Preview with #557CB0

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

Preview Lab → · Contrast checker → · Palette generator →