#1C4C9D#1C4C9D

#1C4C9D is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.3% C 0.142 H 260.3°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#1C4C9D
RGB	rgb(28, 76, 157)
HSL	hsl(218, 70%, 36%)
HSV	hsv(218, 82%, 62%)
CMYK	cmyk(82.2%, 51.6%, 0%, 38.4%)
CIE-LAB	lab(33.67, 15.05, -48.61)
CIE-LCH	lch(33.67, 50.89, 287.20°)
OKLab	oklab(43.31% -0.0239 -0.14)
OKLCH	oklch(43.31% 0.142 260.3)
XYZ	xyz(9.1469, 7.8490, 32.9247)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4C9D #9D6D1C

analogous

#1C8D9D #1C4C9D #2C1C9D

triadic

#1C4C9D #9D1C4C #4C9D1C

tetradic

#1C4C9D #9D1C8D #9D6D1C #1C9D2C

square

#1C4C9D #9D1C8D #9D6D1C #1C9D2C

split-complementary

#1C4C9D #9D2C1C #8D9D1C

monochromatic

#091A35 #133369 #1C4C9D #2565D1 #5388E0

Accessibility & contrast

On white

8.17

#1C4C9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#1C4C9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4C9D

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4C9D	#FFFFFF	#000000	##FFFFFF
##1C4C9D	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1755A0

Deuteranopia (green-blind)

#004A9B

Tritanopia (blue-blind)

#00606D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1c4c9d;
/* rgb */ color: rgb(28, 76, 157);
/* oklch */ color: oklch(43.3% 0.142 260.3);

Tailwind

colors: {
  custom: {
    50: '#6f7dba',
    500: '#1c4c9d',
    950: '#000000',
  },
}

SCSS

$custom: #1c4c9d;
$custom-light: #6f7dba;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4c9d",
  "rgb": {
    "r": 28,
    "g": 76,
    "b": 157
  },
  "hsl": {
    "h": 217.674,
    "s": 69.73,
    "l": 36.275
  },
  "oklch": {
    "l": 0.43311,
    "c": 0.14202,
    "h": 260.3
  },
  "luminance": 0.0785
}

Semantic roles & 50–950 ramp

primary

#1C4C9D

secondary

#C39951

accent

#AB3BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #1C4C9D

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

Preview Lab → · Contrast checker → · Palette generator →