#1C4D9E#1C4D9E

#1C4D9E is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.6% C 0.142 H 260.1°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#1C4D9E
RGB	rgb(28, 77, 158)
HSL	hsl(217, 70%, 36%)
HSV	hsv(217, 82%, 62%)
CMYK	cmyk(82.3%, 51.3%, 0%, 38%)
CIE-LAB	lab(34.03, 14.78, -48.63)
CIE-LCH	lch(34.03, 50.82, 286.90°)
OKLab	oklab(43.61% -0.0245 -0.14)
OKLCH	oklch(43.61% 0.142 260.1)
XYZ	xyz(9.3021, 8.0221, 33.3993)
Luminance	0.0802 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4D9E #9E6D1C

analogous

#1C8E9E #1C4D9E #2C1C9E

triadic

#1C4D9E #9E1C4D #4D9E1C

tetradic

#1C4D9E #9E1C8E #9E6D1C #1C9E2C

square

#1C4D9E #9E1C8E #9E6D1C #1C9E2C

split-complementary

#1C4D9E #9E2C1C #8E9E1C

monochromatic

#0A1A36 #13346A #1C4D9E #2566D2 #5489E1

Accessibility & contrast

On white

8.06

#1C4D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#1C4D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4D9E

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4D9E	#FFFFFF	#000000	##FFFFFF
##1C4D9E	1.00	8.06	2.60	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1956A1

Deuteranopia (green-blind)

#004A9C

Tritanopia (blue-blind)

#00616E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1c4d9e;
/* rgb */ color: rgb(28, 77, 158);
/* oklch */ color: oklch(43.6% 0.142 260.1);

Tailwind

colors: {
  custom: {
    50: '#6f7ebb',
    500: '#1c4d9e',
    950: '#000000',
  },
}

SCSS

$custom: #1c4d9e;
$custom-light: #6f7ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4d9e",
  "rgb": {
    "r": 28,
    "g": 77,
    "b": 158
  },
  "hsl": {
    "h": 217.385,
    "s": 69.892,
    "l": 36.471
  },
  "oklch": {
    "l": 0.43611,
    "c": 0.14215,
    "h": 260.1
  },
  "luminance": 0.08023
}

Semantic roles & 50–950 ramp

primary

#1C4D9E

secondary

#C49952

accent

#AA3BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C4D9E

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

Preview Lab → · Contrast checker → · Palette generator →