#1C4DA0#1C4DA0

#1C4DA0 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 43.8% C 0.145 H 260.4°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#1C4DA0
RGB	rgb(28, 77, 160)
HSL	hsl(218, 70%, 37%)
HSV	hsv(218, 83%, 63%)
CMYK	cmyk(82.5%, 51.9%, 0%, 37.3%)
CIE-LAB	lab(34.17, 15.58, -49.60)
CIE-LCH	lch(34.17, 51.99, 287.44°)
OKLab	oklab(43.77% -0.0243 -0.1429)
OKLCH	oklch(43.77% 0.145 260.4)
XYZ	xyz(9.4756, 8.0915, 34.3133)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4DA0 #A06F1C

analogous

#1C8FA0 #1C4DA0 #2D1CA0

triadic

#1C4DA0 #A01C4D #4DA01C

tetradic

#1C4DA0 #A01C8F #A06F1C #1CA02D

square

#1C4DA0 #A01C8F #A06F1C #1CA02D

split-complementary

#1C4DA0 #A02D1C #8FA01C

monochromatic

#0A1B38 #13346C #1C4DA0 #2566D4 #5589E1

Accessibility & contrast

On white

8.02

#1C4DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#1C4DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4DA0

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4DA0	#FFFFFF	#000000	##FFFFFF
##1C4DA0	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1657A3

Deuteranopia (green-blind)

#004B9E

Tritanopia (blue-blind)

#00616F

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1c4da0;
/* rgb */ color: rgb(28, 77, 160);
/* oklch */ color: oklch(43.8% 0.145 260.4);

Tailwind

colors: {
  custom: {
    50: '#6f7ebd',
    500: '#1c4da0',
    950: '#000000',
  },
}

SCSS

$custom: #1c4da0;
$custom-light: #6f7ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4da0",
  "rgb": {
    "r": 28,
    "g": 77,
    "b": 160
  },
  "hsl": {
    "h": 217.727,
    "s": 70.213,
    "l": 36.863
  },
  "oklch": {
    "l": 0.43767,
    "c": 0.14492,
    "h": 260.4
  },
  "luminance": 0.08093
}

Semantic roles & 50–950 ramp

primary

#1C4DA0

secondary

#C49A53

accent

#AB3BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C4DA0

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

Preview Lab → · Contrast checker → · Palette generator →