#1F1872#1F1872

#1F1872 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.3% C 0.146 H 276.0°. Best body text is #FFFFFF at 14.67:1 contrast (WCAG AA passes).

Color values

HEX	#1F1872
RGB	rgb(31, 24, 114)
HSL	hsl(245, 65%, 27%)
HSV	hsv(245, 79%, 45%)
CMYK	cmyk(72.8%, 78.9%, 0%, 55.3%)
CIE-LAB	lab(16.30, 33.64, -50.13)
CIE-LCH	lch(16.30, 60.37, 303.87°)
OKLab	oklab(29.31% 0.0152 -0.1449)
OKLCH	oklch(29.31% 0.146 276)
XYZ	xyz(3.9280, 2.1591, 16.1261)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1872 #6B7218

analogous

#183E72 #1F1872 #4C1872

triadic

#1F1872 #721F18 #18721F

tetradic

#1F1872 #72183E #6B7218 #18724C

square

#1F1872 #72183E #6B7218 #18724C

split-complementary

#1F1872 #724C18 #3E7218

monochromatic

#070519 #110D3F #1F1872 #2D23A5 #3D31D4

Accessibility & contrast

On white

14.67

#1F1872 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1F1872 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1872

14.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1872	#FFFFFF	#000000	##FFFFFF
##1F1872	1.00	14.67	1.43	14.67
#FFFFFF	14.67	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C75

Deuteranopia (green-blind)

#002470

Tritanopia (blue-blind)

#003244

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1f1872;
/* rgb */ color: rgb(31, 24, 114);
/* oklch */ color: oklch(29.3% 0.146 276.0);

Tailwind

colors: {
  custom: {
    50: '#69579c',
    500: '#1f1872',
    950: '#000000',
  },
}

SCSS

$custom: #1f1872;
$custom-light: #69579c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1872",
  "rgb": {
    "r": 31,
    "g": 24,
    "b": 114
  },
  "hsl": {
    "h": 244.667,
    "s": 65.217,
    "l": 27.059
  },
  "oklch": {
    "l": 0.29306,
    "c": 0.14569,
    "h": 276
  },
  "luminance": 0.02159
}

Semantic roles & 50–950 ramp

primary

#1F1872

secondary

#9FA73E

accent

#E840DB

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1872

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

Preview Lab → · Contrast checker → · Palette generator →