#233CA0#233CA0

#233CA0 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.5% C 0.164 H 267.4°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#233CA0
RGB	rgb(35, 60, 160)
HSL	hsl(228, 64%, 38%)
HSV	hsv(228, 78%, 63%)
CMYK	cmyk(78.1%, 62.5%, 0%, 37.3%)
CIE-LAB	lab(29.73, 27.81, -56.81)
CIE-LCH	lch(29.73, 63.26, 296.08°)
OKLab	oklab(40.49% -0.0073 -0.1643)
OKLCH	oklch(40.49% 0.164 267.4)
XYZ	xyz(8.6519, 6.1261, 33.9774)
Luminance	0.0613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233CA0 #A08723

analogous

#237AA0 #233CA0 #4823A0

triadic

#233CA0 #A0233C #3CA023

tetradic

#233CA0 #A0237A #A08723 #23A048

square

#233CA0 #A0237A #A08723 #23A048

split-complementary

#233CA0 #A04823 #7AA023

monochromatic

#0D163C #18296E #233CA0 #2F4FD1 #617ADC

Accessibility & contrast

On white

9.44

#233CA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#233CA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233CA0

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233CA0	#FFFFFF	#000000	##FFFFFF
##233CA0	1.00	9.44	2.23	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA3

Deuteranopia (green-blind)

#00409E

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #233ca0;
/* rgb */ color: rgb(35, 60, 160);
/* oklch */ color: oklch(40.5% 0.164 267.4);

Tailwind

colors: {
  custom: {
    50: '#7371bd',
    500: '#233ca0',
    950: '#000000',
  },
}

SCSS

$custom: #233ca0;
$custom-light: #7371bd;
$custom-dark: #000000;

JSON

{
  "hex": "#233ca0",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 160
  },
  "hsl": {
    "h": 228,
    "s": 64.103,
    "l": 38.235
  },
  "oklch": {
    "l": 0.4049,
    "c": 0.16442,
    "h": 267.4
  },
  "luminance": 0.06127
}

Semantic roles & 50–950 ramp

primary

#233CA0

secondary

#C1AD5D

accent

#C641E7

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #233CA0

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

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