#1F4091#1F4091

#1F4091 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.8% C 0.140 H 264.2°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#1F4091
RGB	rgb(31, 64, 145)
HSL	hsl(223, 65%, 35%)
HSV	hsv(223, 79%, 57%)
CMYK	cmyk(78.6%, 55.9%, 0%, 43.1%)
CIE-LAB	lab(29.42, 18.77, -48.19)
CIE-LCH	lch(29.42, 51.71, 291.28°)
OKLab	oklab(39.82% -0.014 -0.1389)
OKLCH	oklch(39.82% 0.14 264.2)
XYZ	xyz(7.5075, 6.0016, 27.5453)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4091 #91701F

analogous

#1F7991 #1F4091 #371F91

triadic

#1F4091 #911F40 #40911F

tetradic

#1F4091 #911F79 #91701F #1F9137

square

#1F4091 #911F79 #91701F #1F9137

split-complementary

#1F4091 #91371F #79911F

monochromatic

#09132C #142A5F #1F4091 #2A56C3 #5178DA

Accessibility & contrast

On white

9.54

#1F4091 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1F4091 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4091

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4091	#FFFFFF	#000000	##FFFFFF
##1F4091	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B94

Deuteranopia (green-blind)

#00408F

Tritanopia (blue-blind)

#005462

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f4091;
/* rgb */ color: rgb(31, 64, 145);
/* oklch */ color: oklch(39.8% 0.140 264.2);

Tailwind

colors: {
  custom: {
    50: '#6d74b2',
    500: '#1f4091',
    950: '#000000',
  },
}

SCSS

$custom: #1f4091;
$custom-light: #6d74b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4091",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 145
  },
  "hsl": {
    "h": 222.632,
    "s": 64.773,
    "l": 34.51
  },
  "oklch": {
    "l": 0.39824,
    "c": 0.13965,
    "h": 264.2
  },
  "luminance": 0.06002
}

Semantic roles & 50–950 ramp

primary

#1F4091

secondary

#BD9D4F

accent

#B740E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F4091

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

Preview Lab → · Contrast checker → · Palette generator →