#233C8E#233C8E

#233C8E is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.9% C 0.139 H 266.8°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#233C8E
RGB	rgb(35, 60, 142)
HSL	hsl(226, 60%, 35%)
HSV	hsv(226, 75%, 56%)
CMYK	cmyk(75.4%, 57.7%, 0%, 44.3%)
CIE-LAB	lab(28.22, 20.84, -48.27)
CIE-LCH	lch(28.22, 52.58, 293.35°)
OKLab	oklab(38.9% -0.0077 -0.1392)
OKLCH	oklch(38.9% 0.139 266.8)
XYZ	xyz(7.1898, 5.5413, 26.2766)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C8E #8E7523

analogous

#23728E #233C8E #3F238E

triadic

#233C8E #8E233C #3C8E23

tetradic

#233C8E #8E2372 #8E7523 #238E3F

square

#233C8E #8E2372 #8E7523 #238E3F

split-complementary

#233C8E #8E3F23 #728E23

monochromatic

#0B132C #17275D #233C8E #2F51BF #5674D5

Accessibility & contrast

On white

9.96

#233C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#233C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C8E

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C8E	#FFFFFF	#000000	##FFFFFF
##233C8E	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004891

Deuteranopia (green-blind)

#003E8C

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #233c8e;
/* rgb */ color: rgb(35, 60, 142);
/* oklch */ color: oklch(38.9% 0.139 266.8);

Tailwind

colors: {
  custom: {
    50: '#6e71b0',
    500: '#233c8e',
    950: '#000000',
  },
}

SCSS

$custom: #233c8e;
$custom-light: #6e71b0;
$custom-dark: #000000;

JSON

{
  "hex": "#233c8e",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 142
  },
  "hsl": {
    "h": 225.981,
    "s": 60.452,
    "l": 34.706
  },
  "oklch": {
    "l": 0.38898,
    "c": 0.13938,
    "h": 266.8
  },
  "luminance": 0.05542
}

Semantic roles & 50–950 ramp

primary

#233C8E

secondary

#B9A253

accent

#BE44E4

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233C8E

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

Preview Lab → · Contrast checker → · Palette generator →