#1F4D96#1F4D96

#1F4D96 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.1% C 0.130 H 259.4°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#1F4D96
RGB	rgb(31, 77, 150)
HSL	hsl(217, 66%, 35%)
HSV	hsv(217, 79%, 59%)
CMYK	cmyk(79.3%, 48.7%, 0%, 41.2%)
CIE-LAB	lab(33.56, 11.89, -44.53)
CIE-LCH	lch(33.56, 46.10, 284.95°)
OKLab	oklab(43.1% -0.0238 -0.1279)
OKLCH	oklch(43.1% 0.13 259.4)
XYZ	xyz(8.7220, 7.8001, 29.8941)
Luminance	0.0780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4D96 #96681F

analogous

#1F8896 #1F4D96 #2D1F96

triadic

#1F4D96 #961F4D #4D961F

tetradic

#1F4D96 #961F88 #96681F #1F962D

square

#1F4D96 #961F88 #96681F #1F962D

split-complementary

#1F4D96 #962D1F #88961F

monochromatic

#0A1931 #153363 #1F4D96 #2967C9 #5488DC

Accessibility & contrast

On white

8.20

#1F4D96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#1F4D96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4D96

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4D96	#FFFFFF	#000000	##FFFFFF
##1F4D96	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245599

Deuteranopia (green-blind)

#004A95

Tritanopia (blue-blind)

#005E6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1f4d96;
/* rgb */ color: rgb(31, 77, 150);
/* oklch */ color: oklch(43.1% 0.130 259.4);

Tailwind

colors: {
  custom: {
    50: '#6e7eb5',
    500: '#1f4d96',
    950: '#000000',
  },
}

SCSS

$custom: #1f4d96;
$custom-light: #6e7eb5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4d96",
  "rgb": {
    "r": 31,
    "g": 77,
    "b": 150
  },
  "hsl": {
    "h": 216.807,
    "s": 65.746,
    "l": 35.49
  },
  "oklch": {
    "l": 0.43101,
    "c": 0.13014,
    "h": 259.4
  },
  "luminance": 0.07801
}

Semantic roles & 50–950 ramp

primary

#1F4D96

secondary

#BF9552

accent

#A73FE9

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4D96

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

Preview Lab → · Contrast checker → · Palette generator →