#37557B#37557B

#37557B is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.4% C 0.072 H 254.9°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#37557B
RGB	rgb(55, 85, 123)
HSL	hsl(214, 38%, 35%)
HSV	hsv(214, 55%, 48%)
CMYK	cmyk(55.3%, 30.9%, 0%, 51.8%)
CIE-LAB	lab(35.48, 0.82, -24.90)
CIE-LCH	lch(35.48, 24.91, 271.88°)
OKLab	oklab(44.37% -0.0189 -0.07)
OKLCH	oklch(44.37% 0.072 254.9)
XYZ	xyz(8.3980, 8.7386, 19.9792)
Luminance	0.0874 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37557B #7B5D37

analogous

#37777B #37557B #3B377B

triadic

#37557B #7B3755 #557B37

tetradic

#37557B #7B3777 #7B5D37 #377B3B

square

#37557B #7B3777 #7B5D37 #377B3B

split-complementary

#37557B #7B3B37 #777B37

monochromatic

#111B26 #243851 #37557B #4A72A5 #6E91BE

Accessibility & contrast

On white

7.64

#37557B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#37557B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37557B

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37557B	#FFFFFF	#000000	##FFFFFF
##37557B	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46577D

Deuteranopia (green-blind)

#3D507A

Tritanopia (blue-blind)

#115E62

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #37557b;
/* rgb */ color: rgb(55, 85, 123);
/* oklch */ color: oklch(44.4% 0.072 254.9);

Tailwind

colors: {
  custom: {
    50: '#7384a1',
    500: '#37557b',
    950: '#000000',
  },
}

SCSS

$custom: #37557b;
$custom-light: #7384a1;
$custom-dark: #000000;

JSON

{
  "hex": "#37557b",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 123
  },
  "hsl": {
    "h": 213.529,
    "s": 38.202,
    "l": 34.902
  },
  "oklch": {
    "l": 0.44367,
    "c": 0.07247,
    "h": 254.9
  },
  "luminance": 0.08739
}

Semantic roles & 50–950 ramp

primary

#37557B

secondary

#A78B67

accent

#9B5ACE

background

#F7F8F9

surface

#EDEFF2

border

#C8CACC

text

#080A0F

muted

#7B7C7E

Preview Lab

Preview with #37557B

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

Preview Lab → · Contrast checker → · Palette generator →