#1F54A9#1F54A9

#1F54A9 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.1% C 0.148 H 259.7°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#1F54A9
RGB	rgb(31, 84, 169)
HSL	hsl(217, 69%, 39%)
HSV	hsv(217, 82%, 66%)
CMYK	cmyk(81.7%, 50.3%, 0%, 33.7%)
CIE-LAB	lab(36.92, 14.77, -50.53)
CIE-LCH	lch(36.92, 52.65, 286.29°)
OKLab	oklab(46.1% -0.0265 -0.1454)
OKLCH	oklch(46.1% 0.148 259.7)
XYZ	xyz(10.8942, 9.4952, 38.7870)
Luminance	0.0950 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F54A9 #A9741F

analogous

#1F99A9 #1F54A9 #2F1FA9

triadic

#1F54A9 #A91F54 #54A91F

tetradic

#1F54A9 #A91F99 #A9741F #1FA92F

square

#1F54A9 #A91F99 #A9741F #1FA92F

split-complementary

#1F54A9 #A92F1F #99A91F

monochromatic

#0C2142 #163A75 #1F54A9 #2D6FD8 #6092E2

Accessibility & contrast

On white

7.24

#1F54A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#1F54A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F54A9

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F54A9	#FFFFFF	#000000	##FFFFFF
##1F54A9	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#205DAC

Deuteranopia (green-blind)

#0051A7

Tritanopia (blue-blind)

#006976

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1f54a9;
/* rgb */ color: rgb(31, 84, 169);
/* oklch */ color: oklch(46.1% 0.148 259.7);

Tailwind

colors: {
  custom: {
    50: '#7283c3',
    500: '#1f54a9',
    950: '#000000',
  },
}

SCSS

$custom: #1f54a9;
$custom-light: #7283c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f54a9",
  "rgb": {
    "r": 31,
    "g": 84,
    "b": 169
  },
  "hsl": {
    "h": 216.957,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.46097,
    "c": 0.14784,
    "h": 259.7
  },
  "luminance": 0.09497
}

Semantic roles & 50–950 ramp

primary

#1F54A9

secondary

#C79E5D

accent

#A83CEC

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1F54A9

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

Preview Lab → · Contrast checker → · Palette generator →