#33577B#33577B

#33577B is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.6% C 0.073 H 249.8°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#33577B
RGB	rgb(51, 87, 123)
HSL	hsl(210, 41%, 34%)
HSV	hsv(210, 59%, 48%)
CMYK	cmyk(58.5%, 29.3%, 0%, 51.8%)
CIE-LAB	lab(35.89, -1.40, -24.27)
CIE-LCH	lch(35.89, 24.31, 266.69°)
OKLab	oklab(44.63% -0.0252 -0.0682)
OKLCH	oklch(44.63% 0.073 249.8)
XYZ	xyz(8.3473, 8.9495, 20.0226)
Luminance	0.0895 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33577B #7B5733

analogous

#337B7B #33577B #33337B

triadic

#33577B #7B3357 #577B33

tetradic

#33577B #7B337B #7B5733 #337B33

square

#33577B #7B337B #7B5733 #337B33

split-complementary

#33577B #7B3333 #7B7B33

monochromatic

#0F1A24 #213850 #33577B #4576A6 #6894C0

Accessibility & contrast

On white

7.53

#33577B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#33577B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33577B

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33577B	#FFFFFF	#000000	##FFFFFF
##33577B	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48587D

Deuteranopia (green-blind)

#3F517A

Tritanopia (blue-blind)

#005F64

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #33577b;
/* rgb */ color: rgb(51, 87, 123);
/* oklch */ color: oklch(44.6% 0.073 249.8);

Tailwind

colors: {
  custom: {
    50: '#7186a1',
    500: '#33577b',
    950: '#000000',
  },
}

SCSS

$custom: #33577b;
$custom-light: #7186a1;
$custom-dark: #000000;

JSON

{
  "hex": "#33577b",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 123
  },
  "hsl": {
    "h": 210,
    "s": 41.379,
    "l": 34.118
  },
  "oklch": {
    "l": 0.44632,
    "c": 0.07269,
    "h": 249.8
  },
  "luminance": 0.0895
}

Semantic roles & 50–950 ramp

primary

#33577B

secondary

#A88562

accent

#9457D1

background

#F7F8F9

surface

#EDEFF2

border

#C8CACC

text

#080B0F

muted

#7B7C7E

Preview Lab

Preview with #33577B

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

Preview Lab → · Contrast checker → · Palette generator →