#1F1971#1F1971

#1F1971 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.3% C 0.143 H 275.9°. Best body text is #FFFFFF at 14.63:1 contrast (WCAG AA passes).

Color values

HEX	#1F1971
RGB	rgb(31, 25, 113)
HSL	hsl(244, 64%, 27%)
HSV	hsv(244, 78%, 44%)
CMYK	cmyk(72.6%, 77.9%, 0%, 55.7%)
CIE-LAB	lab(16.40, 32.70, -49.32)
CIE-LCH	lch(16.40, 59.17, 303.55°)
OKLab	oklab(29.34% 0.0148 -0.1426)
OKLCH	oklch(29.34% 0.143 275.9)
XYZ	xyz(3.8924, 2.1785, 15.8349)
Luminance	0.0218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1971 #6B7119

analogous

#193F71 #1F1971 #4B1971

triadic

#1F1971 #711F19 #19711F

tetradic

#1F1971 #71193F #6B7119 #19714B

square

#1F1971 #71193F #6B7119 #19714B

split-complementary

#1F1971 #714B19 #3F7119

monochromatic

#070619 #110E3F #1F1971 #2D24A3 #3D33D2

Accessibility & contrast

On white

14.63

#1F1971 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1F1971 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1971

14.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1971	#FFFFFF	#000000	##FFFFFF
##1F1971	1.00	14.63	1.44	14.63
#FFFFFF	14.63	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C74

Deuteranopia (green-blind)

#00256F

Tritanopia (blue-blind)

#003244

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f1971;
/* rgb */ color: rgb(31, 25, 113);
/* oklch */ color: oklch(29.3% 0.143 275.9);

Tailwind

colors: {
  custom: {
    50: '#68579b',
    500: '#1f1971',
    950: '#000000',
  },
}

SCSS

$custom: #1f1971;
$custom-light: #68579b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1971",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 113
  },
  "hsl": {
    "h": 244.091,
    "s": 63.768,
    "l": 27.059
  },
  "oklch": {
    "l": 0.2934,
    "c": 0.14333,
    "h": 275.9
  },
  "luminance": 0.02179
}

Semantic roles & 50–950 ramp

primary

#1F1971

secondary

#9FA640

accent

#E741DB

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1971

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

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