#1B54A7#1B54A7

#1B54A7 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 45.8% C 0.146 H 258.5°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B54A7
RGB	rgb(27, 84, 167)
HSL	hsl(216, 72%, 38%)
HSV	hsv(216, 84%, 65%)
CMYK	cmyk(83.8%, 49.7%, 0%, 34.5%)
CIE-LAB	lab(36.67, 13.59, -49.75)
CIE-LCH	lch(36.67, 51.57, 285.28°)
OKLab	oklab(45.83% -0.029 -0.1432)
OKLCH	oklch(45.83% 0.146 258.5)
XYZ	xyz(10.5948, 9.3624, 37.8004)
Luminance	0.0936 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B54A7 #A76E1B

analogous

#1B9AA7 #1B54A7 #281BA7

triadic

#1B54A7 #A71B54 #54A71B

tetradic

#1B54A7 #A71B9A #A76E1B #1BA728

square

#1B54A7 #A71B9A #A76E1B #1BA728

split-complementary

#1B54A7 #A7281B #9AA71B

monochromatic

#0A1F3E #123A72 #1B54A7 #246FDC #5891E4

Accessibility & contrast

On white

7.31

#1B54A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#1B54A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B54A7

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B54A7	#FFFFFF	#000000	##FFFFFF
##1B54A7	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225DAA

Deuteranopia (green-blind)

#0050A5

Tritanopia (blue-blind)

#006875

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1b54a7;
/* rgb */ color: rgb(27, 84, 167);
/* oklch */ color: oklch(45.8% 0.146 258.5);

Tailwind

colors: {
  custom: {
    50: '#7083c2',
    500: '#1b54a7',
    950: '#000000',
  },
}

SCSS

$custom: #1b54a7;
$custom-light: #7083c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b54a7",
  "rgb": {
    "r": 27,
    "g": 84,
    "b": 167
  },
  "hsl": {
    "h": 215.571,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.45832,
    "c": 0.1461,
    "h": 258.5
  },
  "luminance": 0.09364
}

Semantic roles & 50–950 ramp

primary

#1B54A7

secondary

#C89956

accent

#A539EF

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1B54A7

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

Preview Lab → · Contrast checker → · Palette generator →