#1C54AB#1C54AB

#1C54AB is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.2% C 0.151 H 259.4°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#1C54AB
RGB	rgb(28, 84, 171)
HSL	hsl(217, 72%, 39%)
HSV	hsv(217, 84%, 67%)
CMYK	cmyk(83.6%, 50.9%, 0%, 32.9%)
CIE-LAB	lab(36.98, 15.29, -51.63)
CIE-LCH	lch(36.98, 53.85, 286.49°)
OKLab	oklab(46.16% -0.0279 -0.1487)
OKLCH	oklch(46.16% 0.151 259.4)
XYZ	xyz(10.9972, 9.5264, 39.7794)
Luminance	0.0953 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C54AB #AB731C

analogous

#1C9CAB #1C54AB #2B1CAB

triadic

#1C54AB #AB1C54 #54AB1C

tetradic

#1C54AB #AB1C9C #AB731C #1CAB2B

square

#1C54AB #AB1C9C #AB731C #1CAB2B

split-complementary

#1C54AB #AB2B1C #9CAB1C

monochromatic

#0B2042 #133A76 #1C54AB #286FDC #5D92E4

Accessibility & contrast

On white

7.23

#1C54AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#1C54AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C54AB

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C54AB	#FFFFFF	#000000	##FFFFFF
##1C54AB	1.00	7.23	2.91	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C5EAE

Deuteranopia (green-blind)

#0051A9

Tritanopia (blue-blind)

#006977

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1c54ab;
/* rgb */ color: rgb(28, 84, 171);
/* oklch */ color: oklch(46.2% 0.151 259.4);

Tailwind

colors: {
  custom: {
    50: '#7283c5',
    500: '#1c54ab',
    950: '#000000',
  },
}

SCSS

$custom: #1c54ab;
$custom-light: #7283c5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c54ab",
  "rgb": {
    "r": 28,
    "g": 84,
    "b": 171
  },
  "hsl": {
    "h": 216.503,
    "s": 71.859,
    "l": 39.02
  },
  "oklch": {
    "l": 0.46163,
    "c": 0.15131,
    "h": 259.4
  },
  "luminance": 0.09528
}

Semantic roles & 50–950 ramp

primary

#1C54AB

secondary

#C99D5A

accent

#A839EF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1C54AB

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

Preview Lab → · Contrast checker → · Palette generator →