#233DA6#233DA6

#233DA6 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.2% C 0.171 H 267.3°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#233DA6
RGB	rgb(35, 61, 166)
HSL	hsl(228, 65%, 39%)
HSV	hsv(228, 79%, 65%)
CMYK	cmyk(78.9%, 63.3%, 0%, 34.9%)
CIE-LAB	lab(30.51, 29.44, -59.15)
CIE-LCH	lch(30.51, 66.07, 296.46°)
OKLab	oklab(41.23% -0.008 -0.1711)
OKLCH	oklch(41.23% 0.171 267.3)
XYZ	xyz(9.2424, 6.4469, 36.8263)
Luminance	0.0645 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233DA6 #A68C23

analogous

#237EA6 #233DA6 #4B23A6

triadic

#233DA6 #A6233D #3DA623

tetradic

#233DA6 #A6237E #A68C23 #23A64B

square

#233DA6 #A6237E #A68C23 #23A64B

split-complementary

#233DA6 #A64B23 #7EA623

monochromatic

#0E1841 #182A73 #233DA6 #3252D4 #657DDF

Accessibility & contrast

On white

9.17

#233DA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#233DA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233DA6

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233DA6	#FFFFFF	#000000	##FFFFFF
##233DA6	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA9

Deuteranopia (green-blind)

#0042A4

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #233da6;
/* rgb */ color: rgb(35, 61, 166);
/* oklch */ color: oklch(41.2% 0.171 267.3);

Tailwind

colors: {
  custom: {
    50: '#7472c1',
    500: '#233da6',
    950: '#000000',
  },
}

SCSS

$custom: #233da6;
$custom-light: #7472c1;
$custom-dark: #000000;

JSON

{
  "hex": "#233da6",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 166
  },
  "hsl": {
    "h": 228.092,
    "s": 65.174,
    "l": 39.412
  },
  "oklch": {
    "l": 0.41233,
    "c": 0.17129,
    "h": 267.3
  },
  "luminance": 0.06448
}

Semantic roles & 50–950 ramp

primary

#233DA6

secondary

#C4B061

accent

#C740E8

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #233DA6

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

Preview Lab → · Contrast checker → · Palette generator →