#1F2596#1F2596

#1F2596 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.3% C 0.179 H 270.6°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#1F2596
RGB	rgb(31, 37, 150)
HSL	hsl(237, 66%, 35%)
HSV	hsv(237, 79%, 59%)
CMYK	cmyk(79.3%, 75.3%, 0%, 41.2%)
CIE-LAB	lab(23.05, 38.52, -61.69)
CIE-LCH	lch(23.05, 72.73, 301.98°)
OKLab	oklab(35.28% 0.0018 -0.1786)
OKLCH	oklch(35.28% 0.179 270.6)
XYZ	xyz(6.7298, 3.8157, 29.2301)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2596 #96901F

analogous

#1F6096 #1F2596 #541F96

triadic

#1F2596 #961F25 #25961F

tetradic

#1F2596 #961F60 #96901F #1F9654

square

#1F2596 #961F60 #96901F #1F9654

split-complementary

#1F2596 #96541F #60961F

monochromatic

#0A0C31 #151863 #1F2596 #2932C9 #545BDC

Accessibility & contrast

On white

11.91

#1F2596 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1F2596 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2596

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2596	#FFFFFF	#000000	##FFFFFF
##1F2596	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D99

Deuteranopia (green-blind)

#003194

Tritanopia (blue-blind)

#00465B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f2596;
/* rgb */ color: rgb(31, 37, 150);
/* oklch */ color: oklch(35.3% 0.179 270.6);

Tailwind

colors: {
  custom: {
    50: '#7161b6',
    500: '#1f2596',
    950: '#000000',
  },
}

SCSS

$custom: #1f2596;
$custom-light: #7161b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2596",
  "rgb": {
    "r": 31,
    "g": 37,
    "b": 150
  },
  "hsl": {
    "h": 236.975,
    "s": 65.746,
    "l": 35.49
  },
  "oklch": {
    "l": 0.35284,
    "c": 0.17865,
    "h": 270.6
  },
  "luminance": 0.03816
}

Semantic roles & 50–950 ramp

primary

#1F2596

secondary

#BFB952

accent

#E03FE9

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1F2596

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

Preview Lab → · Contrast checker → · Palette generator →