#1C50AB#1C50AB

#1C50AB is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.3% C 0.156 H 260.8°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#1C50AB
RGB	rgb(28, 80, 171)
HSL	hsl(218, 72%, 39%)
HSV	hsv(218, 84%, 67%)
CMYK	cmyk(83.6%, 53.2%, 0%, 32.9%)
CIE-LAB	lab(35.84, 17.96, -53.48)
CIE-LCH	lch(35.84, 56.42, 288.56°)
OKLab	oklab(45.29% -0.0251 -0.1542)
OKLCH	oklch(45.29% 0.156 260.8)
XYZ	xyz(10.6956, 8.9232, 39.6788)
Luminance	0.0892 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C50AB #AB771C

analogous

#1C98AB #1C50AB #301CAB

triadic

#1C50AB #AB1C50 #50AB1C

tetradic

#1C50AB #AB1C98 #AB771C #1CAB30

square

#1C50AB #AB1C98 #AB771C #1CAB30

split-complementary

#1C50AB #AB301C #98AB1C

monochromatic

#0B1F42 #133776 #1C50AB #286ADC #5D8EE4

Accessibility & contrast

On white

7.54

#1C50AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#1C50AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C50AB

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C50AB	#FFFFFF	#000000	##FFFFFF
##1C50AB	1.00	7.54	2.78	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#095BAE

Deuteranopia (green-blind)

#004EA9

Tritanopia (blue-blind)

#006675

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1c50ab;
/* rgb */ color: rgb(28, 80, 171);
/* oklch */ color: oklch(45.3% 0.156 260.8);

Tailwind

colors: {
  custom: {
    50: '#7280c5',
    500: '#1c50ab',
    950: '#000000',
  },
}

SCSS

$custom: #1c50ab;
$custom-light: #7280c5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c50ab",
  "rgb": {
    "r": 28,
    "g": 80,
    "b": 171
  },
  "hsl": {
    "h": 218.182,
    "s": 71.859,
    "l": 39.02
  },
  "oklch": {
    "l": 0.4529,
    "c": 0.15627,
    "h": 260.8
  },
  "luminance": 0.08924
}

Semantic roles & 50–950 ramp

primary

#1C50AB

secondary

#C9A05A

accent

#AD39EF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1C50AB

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

Preview Lab → · Contrast checker → · Palette generator →