#337EAA#337EAA

#337EAA is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.6% C 0.100 H 238.0°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#337EAA
RGB	rgb(51, 126, 170)
HSL	hsl(202, 54%, 43%)
HSV	hsv(202, 70%, 67%)
CMYK	cmyk(70%, 25.9%, 0%, 33.3%)
CIE-LAB	lab(50.13, -8.50, -30.12)
CIE-LCH	lch(50.13, 31.29, 254.23°)
OKLab	oklab(56.61% -0.0529 -0.0848)
OKLCH	oklch(56.61% 0.1 238)
XYZ	xyz(16.0790, 18.5260, 40.7509)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337EAA #AA5F33

analogous

#33AA9A #337EAA #3342AA

triadic

#337EAA #AA337E #7EAA33

tetradic

#337EAA #9A33AA #AA5F33 #42AA33

square

#337EAA #9A33AA #AA5F33 #42AA33

split-complementary

#337EAA #AA3342 #AA9A33

monochromatic

#17384C #255B7B #337EAA #509DCA #7FB7D9

Accessibility & contrast

On white

4.46

#337EAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#337EAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337EAA

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337EAA	#FFFFFF	#000000	##000000
##337EAA	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697EAC

Deuteranopia (green-blind)

#5972A9

Tritanopia (blue-blind)

#00898D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #337eaa;
/* rgb */ color: rgb(51, 126, 170);
/* oklch */ color: oklch(56.6% 0.100 238.0);

Tailwind

colors: {
  custom: {
    50: '#79a3c3',
    500: '#337eaa',
    950: '#000000',
  },
}

SCSS

$custom: #337eaa;
$custom-light: #79a3c3;
$custom-dark: #000000;

JSON

{
  "hex": "#337eaa",
  "rgb": {
    "r": 51,
    "g": 126,
    "b": 170
  },
  "hsl": {
    "h": 202.185,
    "s": 53.846,
    "l": 43.333
  },
  "oklch": {
    "l": 0.56611,
    "c": 0.09996,
    "h": 238
  },
  "luminance": 0.18528
}

Semantic roles & 50–950 ramp

primary

#337EAA

secondary

#C29377

accent

#814BDD

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #337EAA

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

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