#237CBC#237CBC

#237CBC is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.7% C 0.128 H 245.2°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#237CBC
RGB	rgb(35, 124, 188)
HSL	hsl(205, 69%, 44%)
HSV	hsv(205, 81%, 74%)
CMYK	cmyk(81.4%, 34%, 0%, 26.3%)
CIE-LAB	lab(49.98, -2.82, -40.77)
CIE-LCH	lch(49.98, 40.87, 266.04°)
OKLab	oklab(56.66% -0.0535 -0.116)
OKLCH	oklch(56.66% 0.128 245.2)
XYZ	xyz(16.9744, 18.4014, 50.2244)
Luminance	0.1840 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237CBC #BC6323

analogous

#23BCAF #237CBC #232FBC

triadic

#237CBC #BC237C #7CBC23

tetradic

#237CBC #AF23BC #BC6323 #2FBC23

square

#237CBC #AF23BC #BC6323 #2FBC23

split-complementary

#237CBC #BC232F #BCAF23

monochromatic

#103855 #195A88 #237CBC #419BDC #74B6E5

Accessibility & contrast

On white

4.49

#237CBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#237CBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237CBC

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237CBC	#FFFFFF	#000000	##000000
##237CBC	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7EBF

Deuteranopia (green-blind)

#4871BB

Tritanopia (blue-blind)

#008C93

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #237cbc;
/* rgb */ color: rgb(35, 124, 188);
/* oklch */ color: oklch(56.7% 0.128 245.2);

Tailwind

colors: {
  custom: {
    50: '#77a1d0',
    500: '#237cbc',
    950: '#000000',
  },
}

SCSS

$custom: #237cbc;
$custom-light: #77a1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#237cbc",
  "rgb": {
    "r": 35,
    "g": 124,
    "b": 188
  },
  "hsl": {
    "h": 205.098,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.5666,
    "c": 0.12773,
    "h": 245.2
  },
  "luminance": 0.18403
}

Semantic roles & 50–950 ramp

primary

#237CBC

secondary

#CC966F

accent

#863CEB

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #237CBC

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

Preview Lab → · Contrast checker → · Palette generator →