#1F3D97#1F3D97

#1F3D97 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.7% C 0.152 H 265.7°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#1F3D97
RGB	rgb(31, 61, 151)
HSL	hsl(225, 66%, 36%)
HSV	hsv(225, 79%, 59%)
CMYK	cmyk(79.5%, 59.6%, 0%, 40.8%)
CIE-LAB	lab(29.06, 23.21, -52.44)
CIE-LCH	lch(29.06, 57.34, 293.88°)
OKLab	oklab(39.71% -0.0115 -0.1515)
OKLCH	oklch(39.71% 0.152 265.7)
XYZ	xyz(7.8178, 5.8623, 29.9917)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3D97 #97791F

analogous

#1F7997 #1F3D97 #3D1F97

triadic

#1F3D97 #971F3D #3D971F

tetradic

#1F3D97 #971F79 #97791F #1F973D

square

#1F3D97 #971F79 #97791F #1F973D

split-complementary

#1F3D97 #973D1F #79971F

monochromatic

#0A1431 #152864 #1F3D97 #2952CA #5476DC

Accessibility & contrast

On white

9.67

#1F3D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1F3D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3D97

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3D97	#FFFFFF	#000000	##FFFFFF
##1F3D97	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9A

Deuteranopia (green-blind)

#003F95

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f3d97;
/* rgb */ color: rgb(31, 61, 151);
/* oklch */ color: oklch(39.7% 0.152 265.7);

Tailwind

colors: {
  custom: {
    50: '#6f72b6',
    500: '#1f3d97',
    950: '#000000',
  },
}

SCSS

$custom: #1f3d97;
$custom-light: #6f72b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3d97",
  "rgb": {
    "r": 31,
    "g": 61,
    "b": 151
  },
  "hsl": {
    "h": 225,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.39709,
    "c": 0.15191,
    "h": 265.7
  },
  "luminance": 0.05863
}

Semantic roles & 50–950 ramp

primary

#1F3D97

secondary

#BFA452

accent

#BE3FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1F3D97

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

Preview Lab → · Contrast checker → · Palette generator →