#1C4EA1#1C4EA1

#1C4EA1 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.1% C 0.145 H 260.1°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#1C4EA1
RGB	rgb(28, 78, 161)
HSL	hsl(217, 70%, 37%)
HSV	hsv(217, 83%, 63%)
CMYK	cmyk(82.6%, 51.6%, 0%, 36.9%)
CIE-LAB	lab(34.53, 15.31, -49.61)
CIE-LCH	lch(34.53, 51.92, 287.15°)
OKLab	oklab(44.07% -0.0249 -0.1429)
OKLCH	oklch(44.07% 0.145 260.1)
XYZ	xyz(9.6340, 8.2677, 34.7994)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4EA1 #A16F1C

analogous

#1C90A1 #1C4EA1 #2D1CA1

triadic

#1C4EA1 #A11C4E #4EA11C

tetradic

#1C4EA1 #A11C90 #A16F1C #1CA12D

square

#1C4EA1 #A11C90 #A16F1C #1CA12D

split-complementary

#1C4EA1 #A12D1C #90A11C

monochromatic

#0A1B39 #13356D #1C4EA1 #2567D5 #568AE2

Accessibility & contrast

On white

7.91

#1C4EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1C4EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4EA1

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4EA1	#FFFFFF	#000000	##FFFFFF
##1C4EA1	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1858A4

Deuteranopia (green-blind)

#004C9F

Tritanopia (blue-blind)

#006270

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c4ea1;
/* rgb */ color: rgb(28, 78, 161);
/* oklch */ color: oklch(44.1% 0.145 260.1);

Tailwind

colors: {
  custom: {
    50: '#6f7ebd',
    500: '#1c4ea1',
    950: '#000000',
  },
}

SCSS

$custom: #1c4ea1;
$custom-light: #6f7ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4ea1",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 161
  },
  "hsl": {
    "h": 217.444,
    "s": 70.37,
    "l": 37.059
  },
  "oklch": {
    "l": 0.44066,
    "c": 0.14505,
    "h": 260.1
  },
  "luminance": 0.08269
}

Semantic roles & 50–950 ramp

primary

#1C4EA1

secondary

#C59A54

accent

#AA3BED

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1C4EA1

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

Preview Lab → · Contrast checker → · Palette generator →