#1F2679#1F2679

#1F2679 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.4% C 0.139 H 272.1°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#1F2679
RGB	rgb(31, 38, 121)
HSL	hsl(235, 59%, 30%)
HSV	hsv(235, 74%, 47%)
CMYK	cmyk(74.4%, 68.6%, 0%, 52.5%)
CIE-LAB	lab(20.27, 27.28, -48.09)
CIE-LCH	lch(20.27, 55.29, 299.57°)
OKLab	oklab(32.38% 0.0051 -0.139)
OKLCH	oklch(32.38% 0.139 272.1)
XYZ	xyz(4.7082, 3.0575, 18.4275)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2679 #79721F

analogous

#1F5379 #1F2679 #451F79

triadic

#1F2679 #791F26 #26791F

tetradic

#1F2679 #791F53 #79721F #1F7945

square

#1F2679 #791F53 #79721F #1F7945

split-complementary

#1F2679 #79451F #53791F

monochromatic

#060818 #131748 #1F2679 #2B35AA #434ECF

Accessibility & contrast

On white

13.03

#1F2679 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1F2679 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2679

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2679	#FFFFFF	#000000	##FFFFFF
##1F2679	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357C

Deuteranopia (green-blind)

#002D77

Tritanopia (blue-blind)

#003C4C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1f2679;
/* rgb */ color: rgb(31, 38, 121);
/* oklch */ color: oklch(32.4% 0.139 272.1);

Tailwind

colors: {
  custom: {
    50: '#6960a1',
    500: '#1f2679',
    950: '#000000',
  },
}

SCSS

$custom: #1f2679;
$custom-light: #6960a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2679",
  "rgb": {
    "r": 31,
    "g": 38,
    "b": 121
  },
  "hsl": {
    "h": 235.333,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.32377,
    "c": 0.13907,
    "h": 272.1
  },
  "luminance": 0.03058
}

Semantic roles & 50–950 ramp

primary

#1F2679

secondary

#ACA547

accent

#D645E2

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1F2679

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

Preview Lab → · Contrast checker → · Palette generator →