#233C80#233C80

#233C80 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.7% C 0.119 H 265.7°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#233C80
RGB	rgb(35, 60, 128)
HSL	hsl(224, 57%, 32%)
HSV	hsv(224, 73%, 50%)
CMYK	cmyk(72.7%, 53.1%, 0%, 49.8%)
CIE-LAB	lab(27.15, 15.33, -41.31)
CIE-LCH	lch(27.15, 44.06, 290.36°)
OKLab	oklab(37.75% -0.0088 -0.1187)
OKLCH	oklch(37.75% 0.119 265.7)
XYZ	xyz(6.2039, 5.1469, 21.0844)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C80 #806723

analogous

#236B80 #233C80 #392380

triadic

#233C80 #80233C #3C8023

tetradic

#233C80 #80236B #806723 #238039

square

#233C80 #80236B #806723 #238039

split-complementary

#233C80 #803923 #6B8023

monochromatic

#090F20 #162550 #233C80 #3053B0 #4F71CF

Accessibility & contrast

On white

10.35

#233C80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#233C80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C80

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C80	#FFFFFF	#000000	##FFFFFF
##233C80	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#124582

Deuteranopia (green-blind)

#003C7F

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #233c80;
/* rgb */ color: rgb(35, 60, 128);
/* oklch */ color: oklch(37.7% 0.119 265.7);

Tailwind

colors: {
  custom: {
    50: '#6b71a5',
    500: '#233c80',
    950: '#000000',
  },
}

SCSS

$custom: #233c80;
$custom-light: #6b71a5;
$custom-dark: #000000;

JSON

{
  "hex": "#233c80",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 128
  },
  "hsl": {
    "h": 223.871,
    "s": 57.055,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37746,
    "c": 0.11904,
    "h": 265.7
  },
  "luminance": 0.05148
}

Semantic roles & 50–950 ramp

primary

#233C80

secondary

#B2974D

accent

#B747E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233C80

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

Preview Lab → · Contrast checker → · Palette generator →