#237BA8#237BA8

#237BA8 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.3% C 0.106 H 236.2°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#237BA8
RGB	rgb(35, 123, 168)
HSL	hsl(200, 66%, 40%)
HSV	hsv(200, 79%, 66%)
CMYK	cmyk(79.2%, 26.8%, 0%, 34.1%)
CIE-LAB	lab(48.70, -9.62, -31.22)
CIE-LCH	lch(48.70, 32.67, 252.88°)
OKLab	oklab(55.32% -0.059 -0.0882)
OKLCH	oklch(55.32% 0.106 236.2)
XYZ	xyz(14.8412, 17.3486, 39.6046)
Luminance	0.1735 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237BA8 #A85023

analogous

#23A893 #237BA8 #2338A8

triadic

#237BA8 #A8237B #7BA823

tetradic

#237BA8 #9323A8 #A85023 #38A823

square

#237BA8 #9323A8 #A85023 #38A823

split-complementary

#237BA8 #A82338 #A89323

monochromatic

#0E3143 #185675 #237BA8 #349ED5 #66B6DF

Accessibility & contrast

On white

4.70

#237BA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#237BA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237BA8

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237BA8	#FFFFFF	#000000	##FFFFFF
##237BA8	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#657BAA

Deuteranopia (green-blind)

#536EA7

Tritanopia (blue-blind)

#00878A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #237ba8;
/* rgb */ color: rgb(35, 123, 168);
/* oklch */ color: oklch(55.3% 0.106 236.2);

Tailwind

colors: {
  custom: {
    50: '#73a1c2',
    500: '#237ba8',
    950: '#000000',
  },
}

SCSS

$custom: #237ba8;
$custom-light: #73a1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#237ba8",
  "rgb": {
    "r": 35,
    "g": 123,
    "b": 168
  },
  "hsl": {
    "h": 200.301,
    "s": 65.517,
    "l": 39.804
  },
  "oklch": {
    "l": 0.55323,
    "c": 0.10607,
    "h": 236.2
  },
  "luminance": 0.1735
}

Semantic roles & 50–950 ramp

primary

#237BA8

secondary

#C58362

accent

#793FE8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #237BA8

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

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