#1F54A8#1F54A8

#1F54A8 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.0% C 0.146 H 259.5°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#1F54A8
RGB	rgb(31, 84, 168)
HSL	hsl(217, 69%, 39%)
HSV	hsv(217, 82%, 66%)
CMYK	cmyk(81.5%, 50%, 0%, 34.1%)
CIE-LAB	lab(36.85, 14.37, -50.05)
CIE-LCH	lch(36.85, 52.07, 286.02°)
OKLab	oklab(46.02% -0.0266 -0.144)
OKLCH	oklch(46.02% 0.146 259.5)
XYZ	xyz(10.8007, 9.4578, 38.2945)
Luminance	0.0946 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F54A8 #A8731F

analogous

#1F99A8 #1F54A8 #2E1FA8

triadic

#1F54A8 #A81F54 #54A81F

tetradic

#1F54A8 #A81F99 #A8731F #1FA82E

square

#1F54A8 #A81F99 #A8731F #1FA82E

split-complementary

#1F54A8 #A82E1F #99A81F

monochromatic

#0C2041 #153A74 #1F54A8 #2C6FD8 #6092E2

Accessibility & contrast

On white

7.26

#1F54A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#1F54A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F54A8

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F54A8	#FFFFFF	#000000	##FFFFFF
##1F54A8	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215DAB

Deuteranopia (green-blind)

#0051A6

Tritanopia (blue-blind)

#006876

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1f54a8;
/* rgb */ color: rgb(31, 84, 168);
/* oklch */ color: oklch(46.0% 0.146 259.5);

Tailwind

colors: {
  custom: {
    50: '#7283c2',
    500: '#1f54a8',
    950: '#000000',
  },
}

SCSS

$custom: #1f54a8;
$custom-light: #7283c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f54a8",
  "rgb": {
    "r": 31,
    "g": 84,
    "b": 168
  },
  "hsl": {
    "h": 216.788,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.46022,
    "c": 0.14647,
    "h": 259.5
  },
  "luminance": 0.09459
}

Semantic roles & 50–950 ramp

primary

#1F54A8

secondary

#C69D5D

accent

#A83CEC

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1F54A8

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

Preview Lab → · Contrast checker → · Palette generator →