#233BA7#233BA7

#233BA7 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.175 H 267.8°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#233BA7
RGB	rgb(35, 59, 167)
HSL	hsl(229, 65%, 40%)
HSV	hsv(229, 79%, 65%)
CMYK	cmyk(79%, 64.7%, 0%, 34.5%)
CIE-LAB	lab(30.09, 31.14, -60.44)
CIE-LCH	lch(30.09, 67.99, 297.26°)
OKLab	oklab(40.95% -0.0069 -0.1749)
OKLCH	oklch(40.95% 0.175 267.8)
XYZ	xyz(9.2297, 6.2742, 37.2763)
Luminance	0.0628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233BA7 #A78F23

analogous

#237DA7 #233BA7 #4D23A7

triadic

#233BA7 #A7233B #3BA723

tetradic

#233BA7 #A7237D #A78F23 #23A74D

square

#233BA7 #A7237D #A78F23 #23A74D

split-complementary

#233BA7 #A74D23 #7DA723

monochromatic

#0E1742 #182974 #233BA7 #3350D4 #667CDF

Accessibility & contrast

On white

9.31

#233BA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#233BA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233BA7

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233BA7	#FFFFFF	#000000	##FFFFFF
##233BA7	1.00	9.31	2.26	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAA

Deuteranopia (green-blind)

#0041A5

Tritanopia (blue-blind)

#00576B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #233ba7;
/* rgb */ color: rgb(35, 59, 167);
/* oklch */ color: oklch(41.0% 0.175 267.8);

Tailwind

colors: {
  custom: {
    50: '#7470c2',
    500: '#233ba7',
    950: '#000000',
  },
}

SCSS

$custom: #233ba7;
$custom-light: #7470c2;
$custom-dark: #000000;

JSON

{
  "hex": "#233ba7",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 167
  },
  "hsl": {
    "h": 229.091,
    "s": 65.347,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40951,
    "c": 0.17502,
    "h": 267.8
  },
  "luminance": 0.06275
}

Semantic roles & 50–950 ramp

primary

#233BA7

secondary

#C4B261

accent

#CA3FE8

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #233BA7

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

Preview Lab → · Contrast checker → · Palette generator →