#557EA1#557EA1

#557EA1 is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.7% C 0.071 H 245.2°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#557EA1
RGB	rgb(85, 126, 161)
HSL	hsl(208, 31%, 48%)
HSV	hsv(208, 47%, 63%)
CMYK	cmyk(47.2%, 21.7%, 0%, 36.9%)
CIE-LAB	lab(51.18, -4.38, -23.14)
CIE-LCH	lch(51.18, 23.55, 259.29°)
OKLab	oklab(57.71% -0.0297 -0.0644)
OKLCH	oklch(57.71% 0.071 245.2)
XYZ	xyz(17.6380, 19.4250, 36.5313)
Luminance	0.1943 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EA1 #A17855

analogous

#55A19E #557EA1 #5558A1

triadic

#557EA1 #A1557E #7EA155

tetradic

#557EA1 #9E55A1 #A17855 #58A155

square

#557EA1 #9E55A1 #A17855 #58A155

split-complementary

#557EA1 #A15558 #A19E55

monochromatic

#2B3F51 #405F79 #557EA1 #7A9CB9 #A2BACE

Accessibility & contrast

On white

4.30

#557EA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#557EA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EA1

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EA1	#FFFFFF	#000000	##000000
##557EA1	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7EA3

Deuteranopia (green-blind)

#6676A0

Tritanopia (blue-blind)

#34868A

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #557ea1;
/* rgb */ color: rgb(85, 126, 161);
/* oklch */ color: oklch(57.7% 0.071 245.2);

Tailwind

colors: {
  custom: {
    50: '#89a3bd',
    500: '#557ea1',
    950: '#000000',
  },
}

SCSS

$custom: #557ea1;
$custom-light: #89a3bd;
$custom-dark: #000000;

JSON

{
  "hex": "#557ea1",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 161
  },
  "hsl": {
    "h": 207.632,
    "s": 30.894,
    "l": 48.235
  },
  "oklch": {
    "l": 0.57711,
    "c": 0.07091,
    "h": 245.2
  },
  "luminance": 0.19426
}

Semantic roles & 50–950 ramp

primary

#557EA1

secondary

#BCA796

accent

#9061C7

background

#F8FAFB

surface

#F0F3F6

border

#CBCDD0

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #557EA1

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

Preview Lab → · Contrast checker → · Palette generator →