#337DA5#337DA5

#337DA5 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.1% C 0.095 H 235.8°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#337DA5
RGB	rgb(51, 125, 165)
HSL	hsl(201, 53%, 42%)
HSV	hsv(201, 69%, 65%)
CMYK	cmyk(69.1%, 24.2%, 0%, 35.3%)
CIE-LAB	lab(49.60, -9.66, -28.03)
CIE-LCH	lch(49.60, 29.65, 250.98°)
OKLab	oklab(56.12% -0.0536 -0.0788)
OKLCH	oklch(56.12% 0.095 235.8)
XYZ	xyz(15.4877, 18.0860, 38.2647)
Luminance	0.1809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337DA5 #A55B33

analogous

#33A594 #337DA5 #3344A5

triadic

#337DA5 #A5337D #7DA533

tetradic

#337DA5 #9433A5 #A55B33 #44A533

square

#337DA5 #9433A5 #A55B33 #44A533

split-complementary

#337DA5 #A53344 #A59433

monochromatic

#163648 #255A76 #337DA5 #4D9DC8 #7CB7D6

Accessibility & contrast

On white

4.55

#337DA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#337DA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337DA5

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337DA5	#FFFFFF	#000000	##000000
##337DA5	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7CA7

Deuteranopia (green-blind)

#5A71A4

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337da5;
/* rgb */ color: rgb(51, 125, 165);
/* oklch */ color: oklch(56.1% 0.095 235.8);

Tailwind

colors: {
  custom: {
    50: '#78a2c0',
    500: '#337da5',
    950: '#000000',
  },
}

SCSS

$custom: #337da5;
$custom-light: #78a2c0;
$custom-dark: #000000;

JSON

{
  "hex": "#337da5",
  "rgb": {
    "r": 51,
    "g": 125,
    "b": 165
  },
  "hsl": {
    "h": 201.053,
    "s": 52.778,
    "l": 42.353
  },
  "oklch": {
    "l": 0.56118,
    "c": 0.09531,
    "h": 235.8
  },
  "luminance": 0.18088
}

Semantic roles & 50–950 ramp

primary

#337DA5

secondary

#BF8F75

accent

#7E4CDC

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #337DA5

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

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