#1F2F85#1F2F85

#1F2F85 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.3% C 0.145 H 269.2°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F85
RGB	rgb(31, 47, 133)
HSL	hsl(231, 62%, 32%)
HSV	hsv(231, 77%, 52%)
CMYK	cmyk(76.7%, 64.7%, 0%, 47.8%)
CIE-LAB	lab(23.73, 25.76, -50.02)
CIE-LCH	lch(23.73, 56.26, 297.25°)
OKLab	oklab(35.26% -0.0019 -0.1446)
OKLCH	oklch(35.26% 0.145 269.2)
XYZ	xyz(5.8138, 4.0172, 22.6547)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F85 #85751F

analogous

#1F6285 #1F2F85 #421F85

triadic

#1F2F85 #851F2F #2F851F

tetradic

#1F2F85 #851F62 #85751F #1F8542

square

#1F2F85 #851F62 #85751F #1F8542

split-complementary

#1F2F85 #85421F #62851F

monochromatic

#080C22 #131D53 #1F2F85 #2B41B7 #4A5FD5

Accessibility & contrast

On white

11.64

#1F2F85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1F2F85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F85

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F85	#FFFFFF	#000000	##FFFFFF
##1F2F85	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D88

Deuteranopia (green-blind)

#003483

Tritanopia (blue-blind)

#004555

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f2f85;
/* rgb */ color: rgb(31, 47, 133);
/* oklch */ color: oklch(35.3% 0.145 269.2);

Tailwind

colors: {
  custom: {
    50: '#6b67a9',
    500: '#1f2f85',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f85;
$custom-light: #6b67a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f85",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 133
  },
  "hsl": {
    "h": 230.588,
    "s": 62.195,
    "l": 32.157
  },
  "oklch": {
    "l": 0.35258,
    "c": 0.14457,
    "h": 269.2
  },
  "luminance": 0.04018
}

Semantic roles & 50–950 ramp

primary

#1F2F85

secondary

#B7A649

accent

#CC43E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1F2F85

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

Preview Lab → · Contrast checker → · Palette generator →