#1C4F9E#1C4F9E

#1C4F9E is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.1% C 0.140 H 259.2°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#1C4F9E
RGB	rgb(28, 79, 158)
HSL	hsl(216, 70%, 36%)
HSV	hsv(216, 82%, 62%)
CMYK	cmyk(82.3%, 50%, 0%, 38%)
CIE-LAB	lab(34.61, 13.43, -47.68)
CIE-LCH	lch(34.61, 49.54, 285.73°)
OKLab	oklab(44.06% -0.0261 -0.1372)
OKLCH	oklch(44.06% 0.14 259.2)
XYZ	xyz(9.4442, 8.3063, 33.4467)
Luminance	0.0831 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4F9E #9E6B1C

analogous

#1C909E #1C4F9E #2A1C9E

triadic

#1C4F9E #9E1C4F #4F9E1C

tetradic

#1C4F9E #9E1C90 #9E6B1C #1C9E2A

square

#1C4F9E #9E1C90 #9E6B1C #1C9E2A

split-complementary

#1C4F9E #9E2A1C #909E1C

monochromatic

#0A1B36 #13356A #1C4F9E #2569D2 #548BE1

Accessibility & contrast

On white

7.89

#1C4F9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#1C4F9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4F9E

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4F9E	#FFFFFF	#000000	##FFFFFF
##1C4F9E	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F58A1

Deuteranopia (green-blind)

#004C9C

Tritanopia (blue-blind)

#00626F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c4f9e;
/* rgb */ color: rgb(28, 79, 158);
/* oklch */ color: oklch(44.1% 0.140 259.2);

Tailwind

colors: {
  custom: {
    50: '#6f7fbb',
    500: '#1c4f9e',
    950: '#000000',
  },
}

SCSS

$custom: #1c4f9e;
$custom-light: #6f7fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4f9e",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 158
  },
  "hsl": {
    "h": 216.462,
    "s": 69.892,
    "l": 36.471
  },
  "oklch": {
    "l": 0.44058,
    "c": 0.13965,
    "h": 259.2
  },
  "luminance": 0.08307
}

Semantic roles & 50–950 ramp

primary

#1C4F9E

secondary

#C49752

accent

#A73BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1C4F9E

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

Preview Lab → · Contrast checker → · Palette generator →