#233BA4#233BA4

#233BA4 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.7% C 0.171 H 267.7°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#233BA4
RGB	rgb(35, 59, 164)
HSL	hsl(229, 65%, 39%)
HSV	hsv(229, 79%, 64%)
CMYK	cmyk(78.7%, 64%, 0%, 35.7%)
CIE-LAB	lab(29.82, 30.00, -59.07)
CIE-LCH	lch(29.82, 66.26, 296.93°)
OKLab	oklab(40.67% -0.0068 -0.1709)
OKLCH	oklch(40.67% 0.171 267.7)
XYZ	xyz(8.9556, 6.1646, 35.8327)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233BA4 #A48C23

analogous

#237CA4 #233BA4 #4C23A4

triadic

#233BA4 #A4233B #3BA423

tetradic

#233BA4 #A4237C #A48C23 #23A44C

square

#233BA4 #A4237C #A48C23 #23A44C

split-complementary

#233BA4 #A44C23 #7CA423

monochromatic

#0D173F #182972 #233BA4 #314FD3 #647ADE

Accessibility & contrast

On white

9.40

#233BA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#233BA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233BA4

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233BA4	#FFFFFF	#000000	##FFFFFF
##233BA4	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA7

Deuteranopia (green-blind)

#0040A2

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #233ba4;
/* rgb */ color: rgb(35, 59, 164);
/* oklch */ color: oklch(40.7% 0.171 267.7);

Tailwind

colors: {
  custom: {
    50: '#7470c0',
    500: '#233ba4',
    950: '#000000',
  },
}

SCSS

$custom: #233ba4;
$custom-light: #7470c0;
$custom-dark: #000000;

JSON

{
  "hex": "#233ba4",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 164
  },
  "hsl": {
    "h": 228.837,
    "s": 64.824,
    "l": 39.02
  },
  "oklch": {
    "l": 0.40669,
    "c": 0.17102,
    "h": 267.7
  },
  "luminance": 0.06166
}

Semantic roles & 50–950 ramp

primary

#233BA4

secondary

#C3B160

accent

#C940E8

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #233BA4

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

Preview Lab → · Contrast checker → · Palette generator →