#231A71#231A71

#231A71 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.8% C 0.141 H 278.1°. Best body text is #FFFFFF at 14.41:1 contrast (WCAG AA passes).

Color values

HEX	#231A71
RGB	rgb(35, 26, 113)
HSL	hsl(246, 63%, 27%)
HSV	hsv(246, 77%, 44%)
CMYK	cmyk(69%, 77%, 0%, 55.7%)
CIE-LAB	lab(16.93, 32.58, -48.43)
CIE-LCH	lch(16.93, 58.37, 303.93°)
OKLab	oklab(29.8% 0.0199 -0.1398)
OKLCH	oklch(29.8% 0.141 278.1)
XYZ	xyz(4.0422, 2.2880, 15.8482)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A71 #68711A

analogous

#1A3D71 #231A71 #4F1A71

triadic

#231A71 #71231A #1A7123

tetradic

#231A71 #711A3D #68711A #1A714F

square

#231A71 #711A3D #68711A #1A714F

split-complementary

#231A71 #714F1A #3D711A

monochromatic

#080619 #140F3F #231A71 #3225A3 #4535D0

Accessibility & contrast

On white

14.41

#231A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#231A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A71

14.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A71	#FFFFFF	#000000	##FFFFFF
##231A71	1.00	14.41	1.46	14.41
#FFFFFF	14.41	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D74

Deuteranopia (green-blind)

#00266F

Tritanopia (blue-blind)

#003344

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #231a71;
/* rgb */ color: rgb(35, 26, 113);
/* oklch */ color: oklch(29.8% 0.141 278.1);

Tailwind

colors: {
  custom: {
    50: '#6a589b',
    500: '#231a71',
    950: '#000000',
  },
}

SCSS

$custom: #231a71;
$custom-light: #6a589b;
$custom-dark: #000000;

JSON

{
  "hex": "#231a71",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 113
  },
  "hsl": {
    "h": 246.207,
    "s": 62.59,
    "l": 27.255
  },
  "oklch": {
    "l": 0.29801,
    "c": 0.14126,
    "h": 278.1
  },
  "luminance": 0.02288
}

Semantic roles & 50–950 ramp

primary

#231A71

secondary

#9BA641

accent

#E642D5

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231A71

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

Preview Lab → · Contrast checker → · Palette generator →