#1F1774#1F1774

#1F1774 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.4% C 0.149 H 275.8°. Best body text is #FFFFFF at 14.65:1 contrast (WCAG AA passes).

Color values

HEX	#1F1774
RGB	rgb(31, 23, 116)
HSL	hsl(245, 67%, 27%)
HSV	hsv(245, 80%, 45%)
CMYK	cmyk(73.3%, 80.2%, 0%, 54.5%)
CIE-LAB	lab(16.33, 34.90, -51.37)
CIE-LCH	lch(16.33, 62.10, 304.19°)
OKLab	oklab(29.39% 0.0152 -0.1485)
OKLCH	oklch(29.39% 0.149 275.8)
XYZ	xyz(4.0228, 2.1647, 16.7254)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1774 #6C7417

analogous

#173E74 #1F1774 #4D1774

triadic

#1F1774 #741F17 #17741F

tetradic

#1F1774 #74173E #6C7417 #17744D

square

#1F1774 #74173E #6C7417 #17744D

split-complementary

#1F1774 #744D17 #3E7417

monochromatic

#07051A #110D41 #1F1774 #2D21A7 #3E30D6

Accessibility & contrast

On white

14.65

#1F1774 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1F1774 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1774

14.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1774	#FFFFFF	#000000	##FFFFFF
##1F1774	1.00	14.65	1.43	14.65
#FFFFFF	14.65	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C77

Deuteranopia (green-blind)

#002472

Tritanopia (blue-blind)

#003345

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1f1774;
/* rgb */ color: rgb(31, 23, 116);
/* oklch */ color: oklch(29.4% 0.149 275.8);

Tailwind

colors: {
  custom: {
    50: '#69569d',
    500: '#1f1774',
    950: '#000000',
  },
}

SCSS

$custom: #1f1774;
$custom-light: #69569d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1774",
  "rgb": {
    "r": 31,
    "g": 23,
    "b": 116
  },
  "hsl": {
    "h": 245.161,
    "s": 66.906,
    "l": 27.255
  },
  "oklch": {
    "l": 0.29393,
    "c": 0.1493,
    "h": 275.8
  },
  "luminance": 0.02165
}

Semantic roles & 50–950 ramp

primary

#1F1774

secondary

#A0A93D

accent

#EA3EDB

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1774

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

Preview Lab → · Contrast checker → · Palette generator →