#1C4FA0#1C4FA0

#1C4FA0 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.2% C 0.142 H 259.6°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#1C4FA0
RGB	rgb(28, 79, 160)
HSL	hsl(217, 70%, 37%)
HSV	hsv(217, 83%, 63%)
CMYK	cmyk(82.5%, 50.6%, 0%, 37.3%)
CIE-LAB	lab(34.75, 14.23, -48.66)
CIE-LCH	lch(34.75, 50.70, 286.30°)
OKLab	oklab(44.21% -0.0258 -0.1401)
OKLCH	oklch(44.21% 0.142 259.6)
XYZ	xyz(9.6177, 8.3757, 34.3607)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4FA0 #A06D1C

analogous

#1C91A0 #1C4FA0 #2B1CA0

triadic

#1C4FA0 #A01C4F #4FA01C

tetradic

#1C4FA0 #A01C91 #A06D1C #1CA02B

square

#1C4FA0 #A01C91 #A06D1C #1CA02B

split-complementary

#1C4FA0 #A02B1C #91A01C

monochromatic

#0A1C38 #13356C #1C4FA0 #2569D4 #558BE1

Accessibility & contrast

On white

7.85

#1C4FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1C4FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4FA0

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4FA0	#FFFFFF	#000000	##FFFFFF
##1C4FA0	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D58A3

Deuteranopia (green-blind)

#004C9E

Tritanopia (blue-blind)

#006370

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1c4fa0;
/* rgb */ color: rgb(28, 79, 160);
/* oklch */ color: oklch(44.2% 0.142 259.6);

Tailwind

colors: {
  custom: {
    50: '#6f7fbd',
    500: '#1c4fa0',
    950: '#000000',
  },
}

SCSS

$custom: #1c4fa0;
$custom-light: #6f7fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4fa0",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 160
  },
  "hsl": {
    "h": 216.818,
    "s": 70.213,
    "l": 36.863
  },
  "oklch": {
    "l": 0.44211,
    "c": 0.14242,
    "h": 259.6
  },
  "luminance": 0.08377
}

Semantic roles & 50–950 ramp

primary

#1C4FA0

secondary

#C49953

accent

#A83BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1C4FA0

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

Preview Lab → · Contrast checker → · Palette generator →