#1F1574#1F1574

#1F1574 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.1% C 0.151 H 276.2°. Best body text is #FFFFFF at 14.81:1 contrast (WCAG AA passes).

Color values

HEX	#1F1574
RGB	rgb(31, 21, 116)
HSL	hsl(246, 69%, 27%)
HSV	hsv(246, 82%, 45%)
CMYK	cmyk(73.3%, 81.9%, 0%, 54.5%)
CIE-LAB	lab(15.94, 36.01, -52.01)
CIE-LCH	lch(15.94, 63.26, 304.70°)
OKLab	oklab(29.12% 0.0162 -0.1503)
OKLCH	oklch(29.12% 0.151 276.2)
XYZ	xyz(3.9846, 2.0882, 16.7127)
Luminance	0.0209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1574 #6A7415

analogous

#153B74 #1F1574 #4F1574

triadic

#1F1574 #741F15 #15741F

tetradic

#1F1574 #74153B #6A7415 #15744F

square

#1F1574 #74153B #6A7415 #15744F

split-complementary

#1F1574 #744F15 #3B7415

monochromatic

#07051A #110C40 #1F1574 #2D1EA8 #3D2BD9

Accessibility & contrast

On white

14.81

#1F1574 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#1F1574 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1574

14.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1574	#FFFFFF	#000000	##FFFFFF
##1F1574	1.00	14.81	1.42	14.81
#FFFFFF	14.81	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C77

Deuteranopia (green-blind)

#002372

Tritanopia (blue-blind)

#003244

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1f1574;
/* rgb */ color: rgb(31, 21, 116);
/* oklch */ color: oklch(29.1% 0.151 276.2);

Tailwind

colors: {
  custom: {
    50: '#6a559d',
    500: '#1f1574',
    950: '#000000',
  },
}

SCSS

$custom: #1f1574;
$custom-light: #6a559d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1574",
  "rgb": {
    "r": 31,
    "g": 21,
    "b": 116
  },
  "hsl": {
    "h": 246.316,
    "s": 69.343,
    "l": 26.863
  },
  "oklch": {
    "l": 0.29124,
    "c": 0.15121,
    "h": 276.2
  },
  "luminance": 0.02089
}

Semantic roles & 50–950 ramp

primary

#1F1574

secondary

#9EAA3B

accent

#EC3CDA

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1574

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

Preview Lab → · Contrast checker → · Palette generator →