#1C4FA9#1C4FA9

#1C4FA9 is a dark, vivid blue. Relative luminance 0.087; OKLCH L 44.9% C 0.155 H 260.9°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#1C4FA9
RGB	rgb(28, 79, 169)
HSL	hsl(218, 72%, 39%)
HSV	hsv(218, 83%, 66%)
CMYK	cmyk(83.4%, 53.3%, 0%, 33.7%)
CIE-LAB	lab(35.40, 17.84, -52.99)
CIE-LCH	lch(35.40, 55.91, 288.60°)
OKLab	oklab(44.92% -0.0246 -0.1528)
OKLCH	oklch(44.92% 0.155 260.9)
XYZ	xyz(10.4337, 8.7021, 38.6582)
Luminance	0.0870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4FA9 #A9761C

analogous

#1C95A9 #1C4FA9 #2F1CA9

triadic

#1C4FA9 #A91C4F #4FA91C

tetradic

#1C4FA9 #A91C95 #A9761C #1CA92F

square

#1C4FA9 #A91C95 #A9761C #1CA92F

split-complementary

#1C4FA9 #A92F1C #95A91C

monochromatic

#0B1E40 #133674 #1C4FA9 #2768DB #5B8DE4

Accessibility & contrast

On white

7.66

#1C4FA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#1C4FA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4FA9

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4FA9	#FFFFFF	#000000	##FFFFFF
##1C4FA9	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#095AAC

Deuteranopia (green-blind)

#004DA7

Tritanopia (blue-blind)

#006574

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1c4fa9;
/* rgb */ color: rgb(28, 79, 169);
/* oklch */ color: oklch(44.9% 0.155 260.9);

Tailwind

colors: {
  custom: {
    50: '#717fc3',
    500: '#1c4fa9',
    950: '#000000',
  },
}

SCSS

$custom: #1c4fa9;
$custom-light: #717fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4fa9",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 169
  },
  "hsl": {
    "h": 218.298,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.44915,
    "c": 0.15479,
    "h": 260.9
  },
  "luminance": 0.08703
}

Semantic roles & 50–950 ramp

primary

#1C4FA9

secondary

#C8A059

accent

#AD39EE

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1C4FA9

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

Preview Lab → · Contrast checker → · Palette generator →