#233D80#233D80

#233D80 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.0% C 0.118 H 265.2°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#233D80
RGB	rgb(35, 61, 128)
HSL	hsl(223, 57%, 32%)
HSV	hsv(223, 73%, 50%)
CMYK	cmyk(72.7%, 52.3%, 0%, 49.8%)
CIE-LAB	lab(27.44, 14.63, -40.84)
CIE-LCH	lch(27.44, 43.38, 289.71°)
OKLab	oklab(37.97% -0.0098 -0.1173)
OKLCH	oklch(37.97% 0.118 265.2)
XYZ	xyz(6.2568, 5.2527, 21.1020)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D80 #806623

analogous

#236C80 #233D80 #382380

triadic

#233D80 #80233D #3D8023

tetradic

#233D80 #80236C #806623 #238038

square

#233D80 #80236C #806623 #238038

split-complementary

#233D80 #803823 #6C8023

monochromatic

#090F20 #162650 #233D80 #3054B0 #4F72CF

Accessibility & contrast

On white

10.24

#233D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#233D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D80

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D80	#FFFFFF	#000000	##FFFFFF
##233D80	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154582

Deuteranopia (green-blind)

#003D7F

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233d80;
/* rgb */ color: rgb(35, 61, 128);
/* oklch */ color: oklch(38.0% 0.118 265.2);

Tailwind

colors: {
  custom: {
    50: '#6b72a5',
    500: '#233d80',
    950: '#000000',
  },
}

SCSS

$custom: #233d80;
$custom-light: #6b72a5;
$custom-dark: #000000;

JSON

{
  "hex": "#233d80",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 128
  },
  "hsl": {
    "h": 223.226,
    "s": 57.055,
    "l": 31.961
  },
  "oklch": {
    "l": 0.3797,
    "c": 0.11771,
    "h": 265.2
  },
  "luminance": 0.05253
}

Semantic roles & 50–950 ramp

primary

#233D80

secondary

#B2964D

accent

#B647E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233D80

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

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