#1F2376#1F2376

#1F2376 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.5% C 0.139 H 273.1°. Best body text is #FFFFFF at 13.46:1 contrast (WCAG AA passes).

Color values

HEX	#1F2376
RGB	rgb(31, 35, 118)
HSL	hsl(237, 58%, 29%)
HSV	hsv(237, 74%, 46%)
CMYK	cmyk(73.7%, 70.3%, 0%, 53.7%)
CIE-LAB	lab(19.23, 28.16, -47.88)
CIE-LCH	lch(19.23, 55.55, 300.46°)
OKLab	oklab(31.53% 0.0075 -0.1384)
OKLCH	oklch(31.53% 0.139 273.1)
XYZ	xyz(4.4350, 2.8009, 17.4429)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2376 #76721F

analogous

#1F4F76 #1F2376 #471F76

triadic

#1F2376 #761F23 #23761F

tetradic

#1F2376 #761F4F #76721F #1F7647

square

#1F2376 #761F4F #76721F #1F7647

split-complementary

#1F2376 #76471F #4F761F

monochromatic

#060718 #121546 #1F2376 #2C31A6 #4248CD

Accessibility & contrast

On white

13.46

#1F2376 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1F2376 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2376

13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2376	#FFFFFF	#000000	##FFFFFF
##1F2376	1.00	13.46	1.56	13.46
#FFFFFF	13.46	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003379

Deuteranopia (green-blind)

#002B74

Tritanopia (blue-blind)

#003949

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f2376;
/* rgb */ color: rgb(31, 35, 118);
/* oklch */ color: oklch(31.5% 0.139 273.1);

Tailwind

colors: {
  custom: {
    50: '#695e9e',
    500: '#1f2376',
    950: '#000000',
  },
}

SCSS

$custom: #1f2376;
$custom-light: #695e9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2376",
  "rgb": {
    "r": 31,
    "g": 35,
    "b": 118
  },
  "hsl": {
    "h": 237.241,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31528,
    "c": 0.13859,
    "h": 273.1
  },
  "luminance": 0.02801
}

Semantic roles & 50–950 ramp

primary

#1F2376

secondary

#AAA547

accent

#DA46E2

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1F2376

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

Preview Lab → · Contrast checker → · Palette generator →