#1C4EA6#1C4EA6

#1C4EA6 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.5% C 0.152 H 260.8°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#1C4EA6
RGB	rgb(28, 78, 166)
HSL	hsl(218, 71%, 38%)
HSV	hsv(218, 83%, 65%)
CMYK	cmyk(83.1%, 53%, 0%, 34.9%)
CIE-LAB	lab(34.90, 17.31, -52.02)
CIE-LCH	lch(34.90, 54.83, 288.41°)
OKLab	oklab(44.46% -0.0242 -0.15)
OKLCH	oklch(44.46% 0.152 260.8)
XYZ	xyz(10.0837, 8.4476, 37.1681)
Luminance	0.0845 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4EA6 #A6741C

analogous

#1C93A6 #1C4EA6 #2F1CA6

triadic

#1C4EA6 #A61C4E #4EA61C

tetradic

#1C4EA6 #A61C93 #A6741C #1CA62F

square

#1C4EA6 #A61C93 #A6741C #1CA62F

split-complementary

#1C4EA6 #A62F1C #93A61C

monochromatic

#0A1D3D #133572 #1C4EA6 #2567DA #598BE3

Accessibility & contrast

On white

7.81

#1C4EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1C4EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4EA6

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4EA6	#FFFFFF	#000000	##FFFFFF
##1C4EA6	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C59A9

Deuteranopia (green-blind)

#004CA4

Tritanopia (blue-blind)

#006472

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1c4ea6;
/* rgb */ color: rgb(28, 78, 166);
/* oklch */ color: oklch(44.5% 0.152 260.8);

Tailwind

colors: {
  custom: {
    50: '#717ec1',
    500: '#1c4ea6',
    950: '#000000',
  },
}

SCSS

$custom: #1c4ea6;
$custom-light: #717ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4ea6",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 166
  },
  "hsl": {
    "h": 218.261,
    "s": 71.134,
    "l": 38.039
  },
  "oklch": {
    "l": 0.44459,
    "c": 0.15194,
    "h": 260.8
  },
  "luminance": 0.08449
}

Semantic roles & 50–950 ramp

primary

#1C4EA6

secondary

#C79E57

accent

#AD3AEE

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1C4EA6

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

Preview Lab → · Contrast checker → · Palette generator →