#233B76#233B76

#233B76 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.105 H 265.0°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#233B76
RGB	rgb(35, 59, 118)
HSL	hsl(223, 54%, 30%)
HSV	hsv(223, 70%, 46%)
CMYK	cmyk(70.3%, 50%, 0%, 53.7%)
CIE-LAB	lab(26.14, 12.08, -36.65)
CIE-LCH	lch(26.14, 38.59, 288.24°)
OKLab	oklab(36.74% -0.0092 -0.105)
OKLCH	oklch(36.74% 0.105 265)
XYZ	xyz(5.5260, 4.7927, 17.7699)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B76 #765E23

analogous

#236476 #233B76 #352376

triadic

#233B76 #76233B #3B7623

tetradic

#233B76 #762364 #765E23 #237635

square

#233B76 #762364 #765E23 #237635

split-complementary

#233B76 #763523 #647623

monochromatic

#070C18 #152347 #233B76 #3153A5 #4A6FC9

Accessibility & contrast

On white

10.72

#233B76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#233B76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B76

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B76	#FFFFFF	#000000	##FFFFFF
##233B76	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4278

Deuteranopia (green-blind)

#083A75

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #233b76;
/* rgb */ color: rgb(35, 59, 118);
/* oklch */ color: oklch(36.7% 0.105 265.0);

Tailwind

colors: {
  custom: {
    50: '#68709e',
    500: '#233b76',
    950: '#000000',
  },
}

SCSS

$custom: #233b76;
$custom-light: #68709e;
$custom-dark: #000000;

JSON

{
  "hex": "#233b76",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 118
  },
  "hsl": {
    "h": 222.651,
    "s": 54.248,
    "l": 30
  },
  "oklch": {
    "l": 0.36745,
    "c": 0.1054,
    "h": 265
  },
  "luminance": 0.04793
}

Semantic roles & 50–950 ramp

primary

#233B76

secondary

#A98E4C

accent

#B34ADE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233B76

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

Preview Lab → · Contrast checker → · Palette generator →