#1C2FA1#1C2FA1

#1C2FA1 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.9% C 0.183 H 267.9°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#1C2FA1
RGB	rgb(28, 47, 161)
HSL	hsl(231, 70%, 37%)
HSV	hsv(231, 83%, 63%)
CMYK	cmyk(82.6%, 70.8%, 0%, 36.9%)
CIE-LAB	lab(26.31, 36.08, -63.04)
CIE-LCH	lch(26.31, 72.64, 299.78°)
OKLab	oklab(37.93% -0.0066 -0.1827)
OKLCH	oklch(37.93% 0.183 267.9)
XYZ	xyz(7.9262, 4.8522, 34.2301)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2FA1 #A18E1C

analogous

#1C71A1 #1C2FA1 #4C1CA1

triadic

#1C2FA1 #A11C2F #2FA11C

tetradic

#1C2FA1 #A11C71 #A18E1C #1CA14C

square

#1C2FA1 #A11C71 #A18E1C #1CA14C

split-complementary

#1C2FA1 #A14C1C #71A11C

monochromatic

#0A1139 #13206D #1C2FA1 #253ED5 #566AE2

Accessibility & contrast

On white

10.66

#1C2FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1C2FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2FA1

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2FA1	#FFFFFF	#000000	##FFFFFF
##1C2FA1	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A4

Deuteranopia (green-blind)

#00389F

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1c2fa1;
/* rgb */ color: rgb(28, 47, 161);
/* oklch */ color: oklch(37.9% 0.183 267.9);

Tailwind

colors: {
  custom: {
    50: '#7268be',
    500: '#1c2fa1',
    950: '#000000',
  },
}

SCSS

$custom: #1c2fa1;
$custom-light: #7268be;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2fa1",
  "rgb": {
    "r": 28,
    "g": 47,
    "b": 161
  },
  "hsl": {
    "h": 231.429,
    "s": 70.37,
    "l": 37.059
  },
  "oklch": {
    "l": 0.37931,
    "c": 0.1828,
    "h": 267.9
  },
  "luminance": 0.04853
}

Semantic roles & 50–950 ramp

primary

#1C2FA1

secondary

#C5B554

accent

#D43BED

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1C2FA1

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

Preview Lab → · Contrast checker → · Palette generator →