#1C4AA1#1C4AA1

#1C4AA1 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.2% C 0.150 H 261.6°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#1C4AA1
RGB	rgb(28, 74, 161)
HSL	hsl(219, 70%, 37%)
HSV	hsv(219, 83%, 63%)
CMYK	cmyk(82.6%, 54%, 0%, 36.9%)
CIE-LAB	lab(33.39, 18.01, -51.47)
CIE-LCH	lch(33.39, 54.54, 289.29°)
OKLab	oklab(43.19% -0.022 -0.1485)
OKLCH	oklch(43.19% 0.15 261.6)
XYZ	xyz(9.3584, 7.7165, 34.7075)
Luminance	0.0772 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4AA1 #A1731C

analogous

#1C8DA1 #1C4AA1 #311CA1

triadic

#1C4AA1 #A11C4A #4AA11C

tetradic

#1C4AA1 #A11C8D #A1731C #1CA131

square

#1C4AA1 #A11C8D #A1731C #1CA131

split-complementary

#1C4AA1 #A1311C #8DA11C

monochromatic

#0A1A39 #13326D #1C4AA1 #2562D5 #5686E2

Accessibility & contrast

On white

8.26

#1C4AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1C4AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4AA1

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4AA1	#FFFFFF	#000000	##FFFFFF
##1C4AA1	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0355A4

Deuteranopia (green-blind)

#00499F

Tritanopia (blue-blind)

#005F6E

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1c4aa1;
/* rgb */ color: rgb(28, 74, 161);
/* oklch */ color: oklch(43.2% 0.150 261.6);

Tailwind

colors: {
  custom: {
    50: '#707bbd',
    500: '#1c4aa1',
    950: '#000000',
  },
}

SCSS

$custom: #1c4aa1;
$custom-light: #707bbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4aa1",
  "rgb": {
    "r": 28,
    "g": 74,
    "b": 161
  },
  "hsl": {
    "h": 219.248,
    "s": 70.37,
    "l": 37.059
  },
  "oklch": {
    "l": 0.4319,
    "c": 0.15008,
    "h": 261.6
  },
  "luminance": 0.07718
}

Semantic roles & 50–950 ramp

primary

#1C4AA1

secondary

#C59E54

accent

#AF3BED

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C4AA1

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

Preview Lab → · Contrast checker → · Palette generator →