#233CA7#233CA7

#233CA7 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.1% C 0.174 H 267.5°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#233CA7
RGB	rgb(35, 60, 167)
HSL	hsl(229, 65%, 40%)
HSV	hsv(229, 79%, 65%)
CMYK	cmyk(79%, 64.1%, 0%, 34.5%)
CIE-LAB	lab(30.35, 30.48, -60.03)
CIE-LCH	lch(30.35, 67.32, 296.92°)
OKLab	oklab(41.14% -0.0074 -0.1737)
OKLCH	oklch(41.14% 0.174 267.5)
XYZ	xyz(9.2816, 6.3780, 37.2936)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233CA7 #A78E23

analogous

#237EA7 #233CA7 #4C23A7

triadic

#233CA7 #A7233C #3CA723

tetradic

#233CA7 #A7237E #A78E23 #23A74C

square

#233CA7 #A7237E #A78E23 #23A74C

split-complementary

#233CA7 #A74C23 #7EA723

monochromatic

#0E1842 #182A74 #233CA7 #3352D4 #667DDF

Accessibility & contrast

On white

9.23

#233CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#233CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233CA7

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233CA7	#FFFFFF	#000000	##FFFFFF
##233CA7	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAA

Deuteranopia (green-blind)

#0041A5

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #233ca7;
/* rgb */ color: rgb(35, 60, 167);
/* oklch */ color: oklch(41.1% 0.174 267.5);

Tailwind

colors: {
  custom: {
    50: '#7471c2',
    500: '#233ca7',
    950: '#000000',
  },
}

SCSS

$custom: #233ca7;
$custom-light: #7471c2;
$custom-dark: #000000;

JSON

{
  "hex": "#233ca7",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 167
  },
  "hsl": {
    "h": 228.636,
    "s": 65.347,
    "l": 39.608
  },
  "oklch": {
    "l": 0.41138,
    "c": 0.17383,
    "h": 267.5
  },
  "luminance": 0.06379
}

Semantic roles & 50–950 ramp

primary

#233CA7

secondary

#C4B261

accent

#C83FE8

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #233CA7

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

Preview Lab → · Contrast checker → · Palette generator →