#557FB2#557FB2

#557FB2 is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.8% C 0.092 H 253.9°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#557FB2
RGB	rgb(85, 127, 178)
HSL	hsl(213, 38%, 52%)
HSV	hsv(213, 52%, 70%)
CMYK	cmyk(52.2%, 28.7%, 0%, 30.2%)
CIE-LAB	lab(52.20, 0.27, -31.40)
CIE-LCH	lch(52.20, 31.40, 270.49°)
OKLab	oklab(58.75% -0.0254 -0.0881)
OKLCH	oklch(58.75% 0.092 253.9)
XYZ	xyz(19.3688, 20.3229, 45.0129)
Luminance	0.2032 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FB2 #B28855

analogous

#55AEB2 #557FB2 #5A55B2

triadic

#557FB2 #B2557F #7FB255

tetradic

#557FB2 #B255AE #B28855 #55B25A

square

#557FB2 #B255AE #B28855 #55B25A

split-complementary

#557FB2 #B25A55 #AEB255

monochromatic

#2C4461 #3F618B #557FB2 #7F9FC5 #A9BED8

Accessibility & contrast

On white

4.15

#557FB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#557FB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FB2

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FB2	#FFFFFF	#000000	##000000
##557FB2	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B82B4

Deuteranopia (green-blind)

#5F78B1

Tritanopia (blue-blind)

#258A91

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #557fb2;
/* rgb */ color: rgb(85, 127, 178);
/* oklch */ color: oklch(58.8% 0.092 253.9);

Tailwind

colors: {
  custom: {
    50: '#8ba3c9',
    500: '#557fb2',
    950: '#000000',
  },
}

SCSS

$custom: #557fb2;
$custom-light: #8ba3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#557fb2",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 178
  },
  "hsl": {
    "h": 212.903,
    "s": 37.652,
    "l": 51.569
  },
  "oklch": {
    "l": 0.58753,
    "c": 0.09168,
    "h": 253.9
  },
  "luminance": 0.20324
}

Semantic roles & 50–950 ramp

primary

#557FB2

secondary

#C6B39D

accent

#995ACE

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #557FB2

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

Preview Lab → · Contrast checker → · Palette generator →