#557FB3#557FB3

#557FB3 is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.8% C 0.093 H 254.4°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#557FB3
RGB	rgb(85, 127, 179)
HSL	hsl(213, 38%, 52%)
HSV	hsv(213, 53%, 70%)
CMYK	cmyk(52.5%, 29.1%, 0%, 29.8%)
CIE-LAB	lab(52.25, 0.58, -31.91)
CIE-LCH	lch(52.25, 31.91, 271.04°)
OKLab	oklab(58.8% -0.025 -0.0896)
OKLCH	oklch(58.8% 0.093 254.4)
XYZ	xyz(19.4696, 20.3632, 45.5436)
Luminance	0.2036 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FB3 #B38955

analogous

#55AEB3 #557FB3 #5A55B3

triadic

#557FB3 #B3557F #7FB355

tetradic

#557FB3 #B355AE #B38955 #55B35A

square

#557FB3 #B355AE #B38955 #55B35A

split-complementary

#557FB3 #B35A55 #AEB355

monochromatic

#2C4462 #3F618C #557FB3 #7F9FC6 #AABFD9

Accessibility & contrast

On white

4.14

#557FB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#557FB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FB3

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FB3	#FFFFFF	#000000	##000000
##557FB3	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A82B5

Deuteranopia (green-blind)

#5F79B2

Tritanopia (blue-blind)

#238B91

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557fb3;
/* rgb */ color: rgb(85, 127, 179);
/* oklch */ color: oklch(58.8% 0.093 254.4);

Tailwind

colors: {
  custom: {
    50: '#8ba3ca',
    500: '#557fb3',
    950: '#000000',
  },
}

SCSS

$custom: #557fb3;
$custom-light: #8ba3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#557fb3",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 179
  },
  "hsl": {
    "h": 213.191,
    "s": 38.211,
    "l": 51.765
  },
  "oklch": {
    "l": 0.58803,
    "c": 0.093,
    "h": 254.4
  },
  "luminance": 0.20365
}

Semantic roles & 50–950 ramp

primary

#557FB3

secondary

#C7B49D

accent

#9A5ACE

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #557FB3

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

Preview Lab → · Contrast checker → · Palette generator →