#237DA6#237DA6

#237DA6 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.7% C 0.103 H 233.2°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#237DA6
RGB	rgb(35, 125, 166)
HSL	hsl(199, 65%, 39%)
HSV	hsv(199, 79%, 65%)
CMYK	cmyk(78.9%, 24.7%, 0%, 34.9%)
CIE-LAB	lab(49.22, -11.49, -29.23)
CIE-LCH	lch(49.22, 31.41, 248.54°)
OKLab	oklab(55.71% -0.0616 -0.0824)
OKLCH	oklch(55.71% 0.103 233.2)
XYZ	xyz(14.9069, 17.7759, 38.7144)
Luminance	0.1778 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237DA6 #A64C23

analogous

#23A68E #237DA6 #233BA6

triadic

#237DA6 #A6237D #7DA623

tetradic

#237DA6 #8E23A6 #A64C23 #3BA623

square

#237DA6 #8E23A6 #A64C23 #3BA623

split-complementary

#237DA6 #A6233B #A68E23

monochromatic

#0E3141 #185773 #237DA6 #32A1D4 #65B8DF

Accessibility & contrast

On white

4.61

#237DA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#237DA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #237DA6

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237DA6	#FFFFFF	#000000	##FFFFFF
##237DA6	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#697CA8

Deuteranopia (green-blind)

#5770A5

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #237da6;
/* rgb */ color: rgb(35, 125, 166);
/* oklch */ color: oklch(55.7% 0.103 233.2);

Tailwind

colors: {
  custom: {
    50: '#73a2c0',
    500: '#237da6',
    950: '#000000',
  },
}

SCSS

$custom: #237da6;
$custom-light: #73a2c0;
$custom-dark: #000000;

JSON

{
  "hex": "#237da6",
  "rgb": {
    "r": 35,
    "g": 125,
    "b": 166
  },
  "hsl": {
    "h": 198.779,
    "s": 65.174,
    "l": 39.412
  },
  "oklch": {
    "l": 0.55713,
    "c": 0.10287,
    "h": 233.2
  },
  "luminance": 0.17778
}

Semantic roles & 50–950 ramp

primary

#237DA6

secondary

#C48061

accent

#7440E8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #237DA6

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

Preview Lab → · Contrast checker → · Palette generator →