#1C4284#1C4284

#1C4284 is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.1% C 0.119 H 260.6°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#1C4284
RGB	rgb(28, 66, 132)
HSL	hsl(218, 65%, 31%)
HSV	hsv(218, 79%, 52%)
CMYK	cmyk(78.8%, 50%, 0%, 48.2%)
CIE-LAB	lab(28.92, 11.78, -40.96)
CIE-LCH	lch(28.92, 42.62, 286.04°)
OKLab	oklab(39.11% -0.0195 -0.1177)
OKLCH	oklch(39.11% 0.119 260.6)
XYZ	xyz(6.5905, 5.8085, 22.5991)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4284 #845E1C

analogous

#1C7684 #1C4284 #2A1C84

triadic

#1C4284 #841C42 #42841C

tetradic

#1C4284 #841C76 #845E1C #1C842A

square

#1C4284 #841C76 #845E1C #1C842A

split-complementary

#1C4284 #842A1C #76841C

monochromatic

#07101F #112952 #1C4284 #275BB6 #4379D7

Accessibility & contrast

On white

9.71

#1C4284 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1C4284 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4284

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4284	#FFFFFF	#000000	##FFFFFF
##1C4284	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4986

Deuteranopia (green-blind)

#004083

Tritanopia (blue-blind)

#00525C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1c4284;
/* rgb */ color: rgb(28, 66, 132);
/* oklch */ color: oklch(39.1% 0.119 260.6);

Tailwind

colors: {
  custom: {
    50: '#6975a8',
    500: '#1c4284',
    950: '#000000',
  },
}

SCSS

$custom: #1c4284;
$custom-light: #6975a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4284",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 132
  },
  "hsl": {
    "h": 218.077,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.39111,
    "c": 0.11928,
    "h": 260.6
  },
  "luminance": 0.05809
}

Semantic roles & 50–950 ramp

primary

#1C4284

secondary

#B78D45

accent

#AB40E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4284

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

Preview Lab → · Contrast checker → · Palette generator →