#1F1979#1F1979

#1F1979 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.154 H 274.8°. Best body text is #FFFFFF at 14.25:1 contrast (WCAG AA passes).

Color values

HEX	#1F1979
RGB	rgb(31, 25, 121)
HSL	hsl(244, 66%, 29%)
HSV	hsv(244, 79%, 47%)
CMYK	cmyk(74.4%, 79.3%, 0%, 52.5%)
CIE-LAB	lab(17.30, 35.47, -52.98)
CIE-LCH	lch(17.30, 63.75, 303.81°)
OKLab	oklab(30.25% 0.013 -0.1532)
OKLCH	oklch(30.25% 0.154 274.8)
XYZ	xyz(4.3628, 2.3666, 18.3123)
Luminance	0.0237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1979 #737919

analogous

#194379 #1F1979 #4F1979

triadic

#1F1979 #791F19 #19791F

tetradic

#1F1979 #791943 #737919 #19794F

square

#1F1979 #791943 #737919 #19794F

split-complementary

#1F1979 #794F19 #437919

monochromatic

#060519 #120F46 #1F1979 #2C23AC #4137D6

Accessibility & contrast

On white

14.25

#1F1979 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1F1979 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1979

14.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1979	#FFFFFF	#000000	##FFFFFF
##1F1979	1.00	14.25	1.47	14.25
#FFFFFF	14.25	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7C

Deuteranopia (green-blind)

#002677

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1f1979;
/* rgb */ color: rgb(31, 25, 121);
/* oklch */ color: oklch(30.3% 0.154 274.8);

Tailwind

colors: {
  custom: {
    50: '#6a58a1',
    500: '#1f1979',
    950: '#000000',
  },
}

SCSS

$custom: #1f1979;
$custom-light: #6a58a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1979",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 121
  },
  "hsl": {
    "h": 243.75,
    "s": 65.753,
    "l": 28.627
  },
  "oklch": {
    "l": 0.3025,
    "c": 0.15375,
    "h": 274.8
  },
  "luminance": 0.02367
}

Semantic roles & 50–950 ramp

primary

#1F1979

secondary

#A7AE40

accent

#E93FDE

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1F1979

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

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