#557FB5#557FB5

#557FB5 is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.9% C 0.096 H 255.2°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#557FB5
RGB	rgb(85, 127, 181)
HSL	hsl(214, 39%, 52%)
HSV	hsv(214, 53%, 71%)
CMYK	cmyk(53%, 29.8%, 0%, 29%)
CIE-LAB	lab(52.34, 1.21, -32.92)
CIE-LCH	lch(52.34, 32.94, 272.11°)
OKLab	oklab(58.9% -0.0244 -0.0925)
OKLCH	oklch(58.9% 0.096 255.2)
XYZ	xyz(19.6733, 20.4447, 46.6166)
Luminance	0.2045 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FB5 #B58B55

analogous

#55AFB5 #557FB5 #5B55B5

triadic

#557FB5 #B5557F #7FB555

tetradic

#557FB5 #B555AF #B58B55 #55B55B

square

#557FB5 #B555AF #B58B55 #55B55B

split-complementary

#557FB5 #B55B55 #AFB555

monochromatic

#2C4464 #3E618F #557FB5 #809FC8 #AABFDA

Accessibility & contrast

On white

4.13

#557FB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#557FB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FB5

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FB5	#FFFFFF	#000000	##000000
##557FB5	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6982B7

Deuteranopia (green-blind)

#5D79B4

Tritanopia (blue-blind)

#218B92

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557fb5;
/* rgb */ color: rgb(85, 127, 181);
/* oklch */ color: oklch(58.9% 0.096 255.2);

Tailwind

colors: {
  custom: {
    50: '#8ba3cb',
    500: '#557fb5',
    950: '#000000',
  },
}

SCSS

$custom: #557fb5;
$custom-light: #8ba3cb;
$custom-dark: #000000;

JSON

{
  "hex": "#557fb5",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 181
  },
  "hsl": {
    "h": 213.75,
    "s": 39.344,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58904,
    "c": 0.09566,
    "h": 255.2
  },
  "luminance": 0.20446
}

Semantic roles & 50–950 ramp

primary

#557FB5

secondary

#C8B69E

accent

#9B59CF

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #557FB5

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

Preview Lab → · Contrast checker → · Palette generator →