#1F4EA7#1F4EA7

#1F4EA7 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.6% C 0.153 H 261.6°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#1F4EA7
RGB	rgb(31, 78, 167)
HSL	hsl(219, 69%, 39%)
HSV	hsv(219, 81%, 65%)
CMYK	cmyk(81.4%, 53.3%, 0%, 34.5%)
CIE-LAB	lab(35.06, 18.00, -52.35)
CIE-LCH	lch(35.06, 55.36, 288.97°)
OKLab	oklab(44.63% -0.0223 -0.1509)
OKLCH	oklch(44.63% 0.153 261.6)
XYZ	xyz(10.2620, 8.5289, 37.6571)
Luminance	0.0853 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4EA7 #A7781F

analogous

#1F92A7 #1F4EA7 #341FA7

triadic

#1F4EA7 #A71F4E #4EA71F

tetradic

#1F4EA7 #A71F92 #A7781F #1FA734

square

#1F4EA7 #A71F92 #A7781F #1FA734

split-complementary

#1F4EA7 #A7341F #92A71F

monochromatic

#0C1E40 #153673 #1F4EA7 #2B67D8 #5F8CE1

Accessibility & contrast

On white

7.76

#1F4EA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1F4EA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4EA7

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4EA7	#FFFFFF	#000000	##FFFFFF
##1F4EA7	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A59AA

Deuteranopia (green-blind)

#004DA5

Tritanopia (blue-blind)

#006473

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1f4ea7;
/* rgb */ color: rgb(31, 78, 167);
/* oklch */ color: oklch(44.6% 0.153 261.6);

Tailwind

colors: {
  custom: {
    50: '#727ec2',
    500: '#1f4ea7',
    950: '#000000',
  },
}

SCSS

$custom: #1f4ea7;
$custom-light: #727ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4ea7",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 167
  },
  "hsl": {
    "h": 219.265,
    "s": 68.687,
    "l": 38.824
  },
  "oklch": {
    "l": 0.44632,
    "c": 0.15256,
    "h": 261.6
  },
  "luminance": 0.0853
}

Semantic roles & 50–950 ramp

primary

#1F4EA7

secondary

#C6A15C

accent

#AF3CEC

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1F4EA7

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

Preview Lab → · Contrast checker → · Palette generator →