#1F4285#1F4285

#1F4285 is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.3% C 0.120 H 261.8°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#1F4285
RGB	rgb(31, 66, 133)
HSL	hsl(219, 62%, 32%)
HSV	hsv(219, 77%, 52%)
CMYK	cmyk(76.7%, 50.4%, 0%, 47.8%)
CIE-LAB	lab(29.11, 12.58, -41.28)
CIE-LCH	lch(29.11, 43.15, 286.95°)
OKLab	oklab(39.31% -0.0171 -0.1186)
OKLCH	oklch(39.31% 0.12 261.8)
XYZ	xyz(6.7454, 5.8804, 22.9653)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4285 #85621F

analogous

#1F7585 #1F4285 #2F1F85

triadic

#1F4285 #851F42 #42851F

tetradic

#1F4285 #851F75 #85621F #1F852F

square

#1F4285 #851F75 #85621F #1F852F

split-complementary

#1F4285 #852F1F #75851F

monochromatic

#081122 #132953 #1F4285 #2B5BB7 #4A79D5

Accessibility & contrast

On white

9.65

#1F4285 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1F4285 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4285

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4285	#FFFFFF	#000000	##FFFFFF
##1F4285	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4A87

Deuteranopia (green-blind)

#004084

Tritanopia (blue-blind)

#00525D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f4285;
/* rgb */ color: rgb(31, 66, 133);
/* oklch */ color: oklch(39.3% 0.120 261.8);

Tailwind

colors: {
  custom: {
    50: '#6a75a9',
    500: '#1f4285',
    950: '#000000',
  },
}

SCSS

$custom: #1f4285;
$custom-light: #6a75a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4285",
  "rgb": {
    "r": 31,
    "g": 66,
    "b": 133
  },
  "hsl": {
    "h": 219.412,
    "s": 62.195,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39307,
    "c": 0.11979,
    "h": 261.8
  },
  "luminance": 0.05881
}

Semantic roles & 50–950 ramp

primary

#1F4285

secondary

#B79149

accent

#AD43E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1F4285

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

Preview Lab → · Contrast checker → · Palette generator →