#237DA7#237DA7

#237DA7 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.8% C 0.104 H 233.9°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#237DA7
RGB	rgb(35, 125, 167)
HSL	hsl(199, 65%, 40%)
HSV	hsv(199, 79%, 65%)
CMYK	cmyk(79%, 25.1%, 0%, 34.5%)
CIE-LAB	lab(49.27, -11.13, -29.75)
CIE-LCH	lch(49.27, 31.76, 249.48°)
OKLab	oklab(55.76% -0.0612 -0.0839)
OKLCH	oklch(55.76% 0.104 233.9)
XYZ	xyz(14.9990, 17.8128, 39.1994)
Luminance	0.1782 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237DA7 #A74D23

analogous

#23A78F #237DA7 #233BA7

triadic

#237DA7 #A7237D #7DA723

tetradic

#237DA7 #8F23A7 #A74D23 #3BA723

square

#237DA7 #8F23A7 #A74D23 #3BA723

split-complementary

#237DA7 #A7233B #A78F23

monochromatic

#0E3142 #185774 #237DA7 #33A1D4 #66B8DF

Accessibility & contrast

On white

4.60

#237DA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#237DA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #237DA7

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237DA7	#FFFFFF	#000000	##FFFFFF
##237DA7	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687CA9

Deuteranopia (green-blind)

#5770A6

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #237da7;
/* rgb */ color: rgb(35, 125, 167);
/* oklch */ color: oklch(55.8% 0.104 233.9);

Tailwind

colors: {
  custom: {
    50: '#73a2c1',
    500: '#237da7',
    950: '#000000',
  },
}

SCSS

$custom: #237da7;
$custom-light: #73a2c1;
$custom-dark: #000000;

JSON

{
  "hex": "#237da7",
  "rgb": {
    "r": 35,
    "g": 125,
    "b": 167
  },
  "hsl": {
    "h": 199.091,
    "s": 65.347,
    "l": 39.608
  },
  "oklch": {
    "l": 0.55763,
    "c": 0.10386,
    "h": 233.9
  },
  "luminance": 0.17815
}

Semantic roles & 50–950 ramp

primary

#237DA7

secondary

#C48161

accent

#753FE8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #237DA7

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

Preview Lab → · Contrast checker → · Palette generator →