#233C8C#233C8C

#233C8C is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.7% C 0.137 H 266.7°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#233C8C
RGB	rgb(35, 60, 140)
HSL	hsl(226, 60%, 34%)
HSV	hsv(226, 75%, 55%)
CMYK	cmyk(75%, 57.1%, 0%, 45.1%)
CIE-LAB	lab(28.07, 20.06, -47.29)
CIE-LCH	lch(28.07, 51.37, 292.98°)
OKLab	oklab(38.73% -0.0078 -0.1363)
OKLCH	oklch(38.73% 0.137 266.7)
XYZ	xyz(7.0410, 5.4817, 25.4929)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C8C #8C7323

analogous

#23718C #233C8C #3E238C

triadic

#233C8C #8C233C #3C8C23

tetradic

#233C8C #8C2371 #8C7323 #238C3E

square

#233C8C #8C2371 #8C7323 #238C3E

split-complementary

#233C8C #8C3E23 #718C23

monochromatic

#0B122A #17275B #233C8C #2F51BD #5573D4

Accessibility & contrast

On white

10.02

#233C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#233C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C8C

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C8C	#FFFFFF	#000000	##FFFFFF
##233C8C	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478F

Deuteranopia (green-blind)

#003E8A

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #233c8c;
/* rgb */ color: rgb(35, 60, 140);
/* oklch */ color: oklch(38.7% 0.137 266.7);

Tailwind

colors: {
  custom: {
    50: '#6e71ae',
    500: '#233c8c',
    950: '#000000',
  },
}

SCSS

$custom: #233c8c;
$custom-light: #6e71ae;
$custom-dark: #000000;

JSON

{
  "hex": "#233c8c",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 140
  },
  "hsl": {
    "h": 225.714,
    "s": 60,
    "l": 34.314
  },
  "oklch": {
    "l": 0.38729,
    "c": 0.13652,
    "h": 266.7
  },
  "luminance": 0.05482
}

Semantic roles & 50–950 ramp

primary

#233C8C

secondary

#B8A052

accent

#BD45E3

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233C8C

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

Preview Lab → · Contrast checker → · Palette generator →