#231D7F#231D7F

#231D7F is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.8% C 0.156 H 275.5°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#231D7F
RGB	rgb(35, 29, 127)
HSL	hsl(244, 63%, 31%)
HSV	hsv(244, 77%, 50%)
CMYK	cmyk(72.4%, 77.2%, 0%, 50.2%)
CIE-LAB	lab(19.09, 35.62, -53.84)
CIE-LCH	lch(19.09, 64.56, 303.49°)
OKLab	oklab(31.79% 0.0149 -0.1557)
OKLCH	oklch(31.79% 0.156 275.5)
XYZ	xyz(4.9620, 2.7679, 20.3473)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D7F #797F1D

analogous

#1D487F #231D7F #541D7F

triadic

#231D7F #7F231D #1D7F23

tetradic

#231D7F #7F1D48 #797F1D #1D7F54

square

#231D7F #7F1D48 #797F1D #1D7F54

split-complementary

#231D7F #7F541D #487F1D

monochromatic

#08061B #15124D #231D7F #3128B1 #4B42D4

Accessibility & contrast

On white

13.52

#231D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#231D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D7F

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D7F	#FFFFFF	#000000	##FFFFFF
##231D7F	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003382

Deuteranopia (green-blind)

#002A7D

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #231d7f;
/* rgb */ color: rgb(35, 29, 127);
/* oklch */ color: oklch(31.8% 0.156 275.5);

Tailwind

colors: {
  custom: {
    50: '#6d5ba5',
    500: '#231d7f',
    950: '#000000',
  },
}

SCSS

$custom: #231d7f;
$custom-light: #6d5ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#231d7f",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 127
  },
  "hsl": {
    "h": 243.673,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31786,
    "c": 0.15639,
    "h": 275.5
  },
  "luminance": 0.02768
}

Semantic roles & 50–950 ramp

primary

#231D7F

secondary

#ACB245

accent

#E642DC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #231D7F

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

Preview Lab → · Contrast checker → · Palette generator →