#1C45A0#1C45A0

#1C45A0 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.0% C 0.155 H 263.1°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#1C45A0
RGB	rgb(28, 69, 160)
HSL	hsl(221, 70%, 37%)
HSV	hsv(221, 83%, 63%)
CMYK	cmyk(82.5%, 56.9%, 0%, 37.3%)
CIE-LAB	lab(31.90, 21.02, -53.29)
CIE-LCH	lch(31.90, 57.28, 291.52°)
OKLab	oklab(42.04% -0.0186 -0.1539)
OKLCH	oklch(42.04% 0.155 263.1)
XYZ	xyz(8.9499, 7.0401, 34.1381)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C45A0 #A0771C

analogous

#1C87A0 #1C45A0 #351CA0

triadic

#1C45A0 #A01C45 #45A01C

tetradic

#1C45A0 #A01C87 #A0771C #1CA035

square

#1C45A0 #A01C87 #A0771C #1CA035

split-complementary

#1C45A0 #A0351C #87A01C

monochromatic

#0A1838 #132F6C #1C45A0 #255BD4 #5581E1

Accessibility & contrast

On white

8.72

#1C45A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#1C45A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C45A0

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C45A0	#FFFFFF	#000000	##FFFFFF
##1C45A0	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A3

Deuteranopia (green-blind)

#00459E

Tritanopia (blue-blind)

#005C6B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1c45a0;
/* rgb */ color: rgb(28, 69, 160);
/* oklch */ color: oklch(42.0% 0.155 263.1);

Tailwind

colors: {
  custom: {
    50: '#7078bd',
    500: '#1c45a0',
    950: '#000000',
  },
}

SCSS

$custom: #1c45a0;
$custom-light: #7078bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c45a0",
  "rgb": {
    "r": 28,
    "g": 69,
    "b": 160
  },
  "hsl": {
    "h": 221.364,
    "s": 70.213,
    "l": 36.863
  },
  "oklch": {
    "l": 0.42039,
    "c": 0.15501,
    "h": 263.1
  },
  "luminance": 0.07041
}

Semantic roles & 50–950 ramp

primary

#1C45A0

secondary

#C4A153

accent

#B63BED

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1C45A0

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

Preview Lab → · Contrast checker → · Palette generator →