#557DAF#557DAF

#557DAF is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 58.1% C 0.090 H 254.5°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#557DAF
RGB	rgb(85, 125, 175)
HSL	hsl(213, 36%, 51%)
HSV	hsv(213, 51%, 69%)
CMYK	cmyk(51.4%, 28.6%, 0%, 31.4%)
CIE-LAB	lab(51.49, 0.51, -30.78)
CIE-LCH	lch(51.49, 30.79, 270.94°)
OKLab	oklab(58.15% -0.0239 -0.0863)
OKLCH	oklch(58.15% 0.09 254.5)
XYZ	xyz(18.8151, 19.6923, 43.3586)
Luminance	0.1969 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DAF #AF8755

analogous

#55AAAF #557DAF #5A55AF

triadic

#557DAF #AF557D #7DAF55

tetradic

#557DAF #AF55AA #AF8755 #55AF5A

square

#557DAF #AF55AA #AF8755 #55AF5A

split-complementary

#557DAF #AF5A55 #AAAF55

monochromatic

#2C425E #405F87 #557DAF #7F9DC3 #A8BDD6

Accessibility & contrast

On white

4.25

#557DAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#557DAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DAF

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DAF	#FFFFFF	#000000	##000000
##557DAF	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6980B1

Deuteranopia (green-blind)

#5E77AE

Tritanopia (blue-blind)

#28888E

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #557daf;
/* rgb */ color: rgb(85, 125, 175);
/* oklch */ color: oklch(58.1% 0.090 254.5);

Tailwind

colors: {
  custom: {
    50: '#8aa2c7',
    500: '#557daf',
    950: '#000000',
  },
}

SCSS

$custom: #557daf;
$custom-light: #8aa2c7;
$custom-dark: #000000;

JSON

{
  "hex": "#557daf",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 175
  },
  "hsl": {
    "h": 213.333,
    "s": 36,
    "l": 50.98
  },
  "oklch": {
    "l": 0.5815,
    "c": 0.08956,
    "h": 254.5
  },
  "luminance": 0.19694
}

Semantic roles & 50–950 ramp

primary

#557DAF

secondary

#C4B29C

accent

#9A5CCC

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F13

muted

#7D7E82

Preview Lab

Preview with #557DAF

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

Preview Lab → · Contrast checker → · Palette generator →