#557DB2#557DB2

#557DB2 is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 58.3% C 0.094 H 255.8°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#557DB2
RGB	rgb(85, 125, 178)
HSL	hsl(214, 38%, 52%)
HSV	hsv(214, 52%, 70%)
CMYK	cmyk(52.2%, 29.8%, 0%, 30.2%)
CIE-LAB	lab(51.62, 1.45, -32.30)
CIE-LCH	lch(51.62, 32.34, 272.57°)
OKLab	oklab(58.3% -0.023 -0.0907)
OKLCH	oklch(58.3% 0.094 255.8)
XYZ	xyz(19.1130, 19.8114, 44.9277)
Luminance	0.1981 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DB2 #B28A55

analogous

#55ACB2 #557DB2 #5C55B2

triadic

#557DB2 #B2557D #7DB255

tetradic

#557DB2 #B255AC #B28A55 #55B25C

square

#557DB2 #B255AC #B28A55 #55B25C

split-complementary

#557DB2 #B25C55 #ACB255

monochromatic

#2C4361 #3F608B #557DB2 #7F9DC5 #A9BDD8

Accessibility & contrast

On white

4.23

#557DB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#557DB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DB2

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DB2	#FFFFFF	#000000	##000000
##557DB2	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6880B4

Deuteranopia (green-blind)

#5D77B1

Tritanopia (blue-blind)

#258990

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #557db2;
/* rgb */ color: rgb(85, 125, 178);
/* oklch */ color: oklch(58.3% 0.094 255.8);

Tailwind

colors: {
  custom: {
    50: '#8ba2c9',
    500: '#557db2',
    950: '#000000',
  },
}

SCSS

$custom: #557db2;
$custom-light: #8ba2c9;
$custom-dark: #000000;

JSON

{
  "hex": "#557db2",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 178
  },
  "hsl": {
    "h": 214.194,
    "s": 37.652,
    "l": 51.569
  },
  "oklch": {
    "l": 0.58301,
    "c": 0.09357,
    "h": 255.8
  },
  "luminance": 0.19813
}

Semantic roles & 50–950 ramp

primary

#557DB2

secondary

#C6B49D

accent

#9C5ACE

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F13

muted

#7D7E82

Preview Lab

Preview with #557DB2

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

Preview Lab → · Contrast checker → · Palette generator →