#233CA1#233CA1

#233CA1 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.6% C 0.166 H 267.5°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#233CA1
RGB	rgb(35, 60, 161)
HSL	hsl(228, 64%, 38%)
HSV	hsv(228, 78%, 63%)
CMYK	cmyk(78.3%, 62.7%, 0%, 36.9%)
CIE-LAB	lab(29.82, 28.20, -57.28)
CIE-LCH	lch(29.82, 63.84, 296.21°)
OKLab	oklab(40.58% -0.0073 -0.1656)
OKLCH	oklch(40.58% 0.166 267.5)
XYZ	xyz(8.7398, 6.1613, 34.4399)
Luminance	0.0616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233CA1 #A18823

analogous

#237BA1 #233CA1 #4923A1

triadic

#233CA1 #A1233C #3CA123

tetradic

#233CA1 #A1237B #A18823 #23A149

square

#233CA1 #A1237B #A18823 #23A149

split-complementary

#233CA1 #A14923 #7BA123

monochromatic

#0D173C #18296F #233CA1 #2F50D2 #627ADD

Accessibility & contrast

On white

9.41

#233CA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#233CA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233CA1

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233CA1	#FFFFFF	#000000	##FFFFFF
##233CA1	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA4

Deuteranopia (green-blind)

#00409F

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #233ca1;
/* rgb */ color: rgb(35, 60, 161);
/* oklch */ color: oklch(40.6% 0.166 267.5);

Tailwind

colors: {
  custom: {
    50: '#7371be',
    500: '#233ca1',
    950: '#000000',
  },
}

SCSS

$custom: #233ca1;
$custom-light: #7371be;
$custom-dark: #000000;

JSON

{
  "hex": "#233ca1",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 161
  },
  "hsl": {
    "h": 228.095,
    "s": 64.286,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40581,
    "c": 0.16577,
    "h": 267.5
  },
  "luminance": 0.06162
}

Semantic roles & 50–950 ramp

primary

#233CA1

secondary

#C2AE5E

accent

#C641E7

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #233CA1

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

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