#1C4990#1C4990

#1C4990 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.6% C 0.128 H 259.4°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#1C4990
RGB	rgb(28, 73, 144)
HSL	hsl(217, 67%, 34%)
HSV	hsv(217, 81%, 56%)
CMYK	cmyk(80.6%, 49.3%, 0%, 43.5%)
CIE-LAB	lab(31.86, 11.84, -43.62)
CIE-LCH	lch(31.86, 45.20, 285.19°)
OKLab	oklab(41.64% -0.0235 -0.1254)
OKLCH	oklch(41.64% 0.128 259.4)
XYZ	xyz(7.8936, 7.0246, 27.3200)
Luminance	0.0703 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4990 #90631C

analogous

#1C8390 #1C4990 #291C90

triadic

#1C4990 #901C49 #49901C

tetradic

#1C4990 #901C83 #90631C #1C9029

square

#1C4990 #901C83 #90631C #1C9029

split-complementary

#1C4990 #90291C #83901C

monochromatic

#08152A #122F5D #1C4990 #2663C3 #4A83DC

Accessibility & contrast

On white

8.73

#1C4990 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#1C4990 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4990

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4990	#FFFFFF	#000000	##FFFFFF
##1C4990	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#205193

Deuteranopia (green-blind)

#00468F

Tritanopia (blue-blind)

#005A65

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1c4990;
/* rgb */ color: rgb(28, 73, 144);
/* oklch */ color: oklch(41.6% 0.128 259.4);

Tailwind

colors: {
  custom: {
    50: '#6b7bb1',
    500: '#1c4990',
    950: '#000000',
  },
}

SCSS

$custom: #1c4990;
$custom-light: #6b7bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4990",
  "rgb": {
    "r": 28,
    "g": 73,
    "b": 144
  },
  "hsl": {
    "h": 216.724,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.41635,
    "c": 0.12756,
    "h": 259.4
  },
  "luminance": 0.07026
}

Semantic roles & 50–950 ramp

primary

#1C4990

secondary

#BE914A

accent

#A73DEA

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C4990

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

Preview Lab → · Contrast checker → · Palette generator →