#231C7E#231C7E

#231C7E is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.5% C 0.156 H 275.8°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#231C7E
RGB	rgb(35, 28, 126)
HSL	hsl(244, 64%, 30%)
HSV	hsv(244, 78%, 49%)
CMYK	cmyk(72.2%, 77.8%, 0%, 50.6%)
CIE-LAB	lab(18.77, 35.86, -53.73)
CIE-LCH	lch(18.77, 64.60, 303.72°)
OKLab	oklab(31.53% 0.0157 -0.1553)
OKLCH	oklch(31.53% 0.156 275.8)
XYZ	xyz(4.8730, 2.6937, 19.9978)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C7E #777E1C

analogous

#1C467E #231C7E #541C7E

triadic

#231C7E #7E231C #1C7E23

tetradic

#231C7E #7E1C46 #777E1C #1C7E54

square

#231C7E #7E1C46 #777E1C #1C7E54

split-complementary

#231C7E #7E541C #467E1C

monochromatic

#07061A #15114C #231C7E #3127B0 #4A40D5

Accessibility & contrast

On white

13.65

#231C7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#231C7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C7E

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C7E	#FFFFFF	#000000	##FFFFFF
##231C7E	1.00	13.65	1.54	13.65
#FFFFFF	13.65	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003281

Deuteranopia (green-blind)

#00297C

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #231c7e;
/* rgb */ color: rgb(35, 28, 126);
/* oklch */ color: oklch(31.5% 0.156 275.8);

Tailwind

colors: {
  custom: {
    50: '#6d5aa4',
    500: '#231c7e',
    950: '#000000',
  },
}

SCSS

$custom: #231c7e;
$custom-light: #6d5aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#231c7e",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 126
  },
  "hsl": {
    "h": 244.286,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.3153,
    "c": 0.15612,
    "h": 275.8
  },
  "luminance": 0.02694
}

Semantic roles & 50–950 ramp

primary

#231C7E

secondary

#AAB244

accent

#E741DB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #231C7E

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

Preview Lab → · Contrast checker → · Palette generator →