#557DA3#557DA3

#557DA3 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.6% C 0.074 H 248.0°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#557DA3
RGB	rgb(85, 125, 163)
HSL	hsl(209, 31%, 49%)
HSV	hsv(209, 48%, 64%)
CMYK	cmyk(47.9%, 23.3%, 0%, 36.1%)
CIE-LAB	lab(50.97, -3.19, -24.63)
CIE-LCH	lch(50.97, 24.84, 262.62°)
OKLab	oklab(57.57% -0.0278 -0.0686)
OKLCH	oklch(57.57% 0.074 248)
XYZ	xyz(17.6885, 19.2416, 37.4251)
Luminance	0.1924 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DA3 #A37B55

analogous

#55A3A2 #557DA3 #5556A3

triadic

#557DA3 #A3557D #7DA355

tetradic

#557DA3 #A255A3 #A37B55 #56A355

square

#557DA3 #A255A3 #A37B55 #56A355

split-complementary

#557DA3 #A35556 #A3A255

monochromatic

#2B3F53 #405E7B #557DA3 #7B9BBA #A3BACF

Accessibility & contrast

On white

4.33

#557DA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#557DA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DA3

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DA3	#FFFFFF	#000000	##000000
##557DA3	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7EA5

Deuteranopia (green-blind)

#6476A2

Tritanopia (blue-blind)

#33868A

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #557da3;
/* rgb */ color: rgb(85, 125, 163);
/* oklch */ color: oklch(57.6% 0.074 248.0);

Tailwind

colors: {
  custom: {
    50: '#89a2be',
    500: '#557da3',
    950: '#000000',
  },
}

SCSS

$custom: #557da3;
$custom-light: #89a2be;
$custom-dark: #000000;

JSON

{
  "hex": "#557da3",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 163
  },
  "hsl": {
    "h": 209.231,
    "s": 31.452,
    "l": 48.627
  },
  "oklch": {
    "l": 0.57571,
    "c": 0.07404,
    "h": 248
  },
  "luminance": 0.19243
}

Semantic roles & 50–950 ramp

primary

#557DA3

secondary

#BDA997

accent

#9360C8

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0F12

muted

#7D7E81

Preview Lab

Preview with #557DA3

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

Preview Lab → · Contrast checker → · Palette generator →