#231C7D#231C7D

#231C7D is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.4% C 0.155 H 275.9°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#231C7D
RGB	rgb(35, 28, 125)
HSL	hsl(244, 63%, 30%)
HSV	hsv(244, 78%, 49%)
CMYK	cmyk(72%, 77.6%, 0%, 51%)
CIE-LAB	lab(18.66, 35.52, -53.28)
CIE-LCH	lch(18.66, 64.03, 303.69°)
OKLab	oklab(31.42% 0.016 -0.154)
OKLCH	oklch(31.42% 0.155 275.9)
XYZ	xyz(4.8088, 2.6681, 19.6596)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C7D #767D1C

analogous

#1C457D #231C7D #541C7D

triadic

#231C7D #7D231C #1C7D23

tetradic

#231C7D #7D1C45 #767D1C #1C7D54

square

#231C7D #7D1C45 #767D1C #1C7D54

split-complementary

#231C7D #7D541C #457D1C

monochromatic

#070619 #15114B #231C7D #3127AF #4A3FD4

Accessibility & contrast

On white

13.69

#231C7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#231C7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C7D

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C7D	#FFFFFF	#000000	##FFFFFF
##231C7D	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003280

Deuteranopia (green-blind)

#00297B

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #231c7d;
/* rgb */ color: rgb(35, 28, 125);
/* oklch */ color: oklch(31.4% 0.155 275.9);

Tailwind

colors: {
  custom: {
    50: '#6d5aa4',
    500: '#231c7d',
    950: '#000000',
  },
}

SCSS

$custom: #231c7d;
$custom-light: #6d5aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#231c7d",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 125
  },
  "hsl": {
    "h": 244.33,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.31419,
    "c": 0.15483,
    "h": 275.9
  },
  "luminance": 0.02669
}

Semantic roles & 50–950 ramp

primary

#231C7D

secondary

#A9B144

accent

#E641DB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #231C7D

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

Preview Lab → · Contrast checker → · Palette generator →