#231971#231971

#231971 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.142 H 278.3°. Best body text is #FFFFFF at 14.49:1 contrast (WCAG AA passes).

Color values

HEX	#231971
RGB	rgb(35, 25, 113)
HSL	hsl(247, 64%, 27%)
HSV	hsv(247, 78%, 44%)
CMYK	cmyk(69%, 77.9%, 0%, 55.7%)
CIE-LAB	lab(16.72, 33.17, -48.77)
CIE-LCH	lch(16.72, 58.98, 304.22°)
OKLab	oklab(29.65% 0.0206 -0.1408)
OKLCH	oklch(29.65% 0.142 278.3)
XYZ	xyz(4.0204, 2.2445, 15.8409)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231971 #677119

analogous

#193B71 #231971 #4F1971

triadic

#231971 #712319 #197123

tetradic

#231971 #71193B #677119 #19714F

square

#231971 #71193B #677119 #19714F

split-complementary

#231971 #714F19 #3B7119

monochromatic

#080619 #130E3F #231971 #3324A3 #4533D2

Accessibility & contrast

On white

14.49

#231971 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#231971 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231971

14.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231971	#FFFFFF	#000000	##FFFFFF
##231971	1.00	14.49	1.45	14.49
#FFFFFF	14.49	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D74

Deuteranopia (green-blind)

#00266F

Tritanopia (blue-blind)

#003244

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #231971;
/* rgb */ color: rgb(35, 25, 113);
/* oklch */ color: oklch(29.7% 0.142 278.3);

Tailwind

colors: {
  custom: {
    50: '#6a579b',
    500: '#231971',
    950: '#000000',
  },
}

SCSS

$custom: #231971;
$custom-light: #6a579b;
$custom-dark: #000000;

JSON

{
  "hex": "#231971",
  "rgb": {
    "r": 35,
    "g": 25,
    "b": 113
  },
  "hsl": {
    "h": 246.818,
    "s": 63.768,
    "l": 27.059
  },
  "oklch": {
    "l": 0.29653,
    "c": 0.14235,
    "h": 278.3
  },
  "luminance": 0.02245
}

Semantic roles & 50–950 ramp

primary

#231971

secondary

#9BA640

accent

#E741D4

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231971

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

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