#1F4E96#1F4E96

#1F4E96 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.3% C 0.129 H 259.0°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E96
RGB	rgb(31, 78, 150)
HSL	hsl(216, 66%, 35%)
HSV	hsv(216, 79%, 59%)
CMYK	cmyk(79.3%, 48%, 0%, 41.2%)
CIE-LAB	lab(33.86, 11.22, -44.06)
CIE-LCH	lch(33.86, 45.46, 284.29°)
OKLab	oklab(43.33% -0.0247 -0.1265)
OKLCH	oklch(43.33% 0.129 259)
XYZ	xyz(8.7925, 7.9411, 29.9176)
Luminance	0.0794 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E96 #96671F

analogous

#1F8996 #1F4E96 #2C1F96

triadic

#1F4E96 #961F4E #4E961F

tetradic

#1F4E96 #961F89 #96671F #1F962C

square

#1F4E96 #961F89 #96671F #1F962C

split-complementary

#1F4E96 #962C1F #89961F

monochromatic

#0A1931 #153463 #1F4E96 #2968C9 #5489DC

Accessibility & contrast

On white

8.11

#1F4E96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#1F4E96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E96

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E96	#FFFFFF	#000000	##FFFFFF
##1F4E96	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265599

Deuteranopia (green-blind)

#044B95

Tritanopia (blue-blind)

#005F6A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1f4e96;
/* rgb */ color: rgb(31, 78, 150);
/* oklch */ color: oklch(43.3% 0.129 259.0);

Tailwind

colors: {
  custom: {
    50: '#6e7fb5',
    500: '#1f4e96',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e96;
$custom-light: #6e7fb5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e96",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 150
  },
  "hsl": {
    "h": 216.303,
    "s": 65.746,
    "l": 35.49
  },
  "oklch": {
    "l": 0.4333,
    "c": 0.12889,
    "h": 259
  },
  "luminance": 0.07942
}

Semantic roles & 50–950 ramp

primary

#1F4E96

secondary

#BF9452

accent

#A63FE9

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1F4E96

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

Preview Lab → · Contrast checker → · Palette generator →