#1C4E9E#1C4E9E

#1C4E9E is a dark, vivid blue. Relative luminance 0.082; OKLCH L 43.8% C 0.141 H 259.7°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#1C4E9E
RGB	rgb(28, 78, 158)
HSL	hsl(217, 70%, 36%)
HSV	hsv(217, 82%, 62%)
CMYK	cmyk(82.3%, 50.6%, 0%, 38%)
CIE-LAB	lab(34.32, 14.10, -48.16)
CIE-LCH	lch(34.32, 50.18, 286.32°)
OKLab	oklab(43.83% -0.0253 -0.1386)
OKLCH	oklch(43.83% 0.141 259.7)
XYZ	xyz(9.3726, 8.1631, 33.4228)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4E9E #9E6C1C

analogous

#1C8F9E #1C4E9E #2B1C9E

triadic

#1C4E9E #9E1C4E #4E9E1C

tetradic

#1C4E9E #9E1C8F #9E6C1C #1C9E2B

square

#1C4E9E #9E1C8F #9E6C1C #1C9E2B

split-complementary

#1C4E9E #9E2B1C #8F9E1C

monochromatic

#0A1B36 #13346A #1C4E9E #2568D2 #548AE1

Accessibility & contrast

On white

7.98

#1C4E9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#1C4E9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4E9E

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4E9E	#FFFFFF	#000000	##FFFFFF
##1C4E9E	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C57A1

Deuteranopia (green-blind)

#004B9C

Tritanopia (blue-blind)

#00616E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c4e9e;
/* rgb */ color: rgb(28, 78, 158);
/* oklch */ color: oklch(43.8% 0.141 259.7);

Tailwind

colors: {
  custom: {
    50: '#6f7ebb',
    500: '#1c4e9e',
    950: '#000000',
  },
}

SCSS

$custom: #1c4e9e;
$custom-light: #6f7ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4e9e",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 158
  },
  "hsl": {
    "h": 216.923,
    "s": 69.892,
    "l": 36.471
  },
  "oklch": {
    "l": 0.43834,
    "c": 0.1409,
    "h": 259.7
  },
  "luminance": 0.08164
}

Semantic roles & 50–950 ramp

primary

#1C4E9E

secondary

#C49852

accent

#A83BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1C4E9E

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

Preview Lab → · Contrast checker → · Palette generator →