#1C2A9F#1C2A9F

#1C2A9F is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.9% C 0.186 H 268.6°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#1C2A9F
RGB	rgb(28, 42, 159)
HSL	hsl(234, 70%, 37%)
HSV	hsv(234, 82%, 62%)
CMYK	cmyk(82.4%, 73.6%, 0%, 37.6%)
CIE-LAB	lab(24.97, 38.47, -64.04)
CIE-LCH	lch(24.97, 74.71, 300.99°)
OKLab	oklab(36.9% -0.0044 -0.1856)
OKLCH	oklch(36.9% 0.186 268.6)
XYZ	xyz(7.5627, 4.4051, 33.2458)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2A9F #9F911C

analogous

#1C6C9F #1C2A9F #501C9F

triadic

#1C2A9F #9F1C2A #2A9F1C

tetradic

#1C2A9F #9F1C6C #9F911C #1C9F50

square

#1C2A9F #9F1C6C #9F911C #1C9F50

split-complementary

#1C2A9F #9F501C #6C9F1C

monochromatic

#0A0F37 #131C6B #1C2A9F #2538D3 #5463E1

Accessibility & contrast

On white

11.16

#1C2A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1C2A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2A9F

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2A9F	#FFFFFF	#000000	##FFFFFF
##1C2A9F	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A2

Deuteranopia (green-blind)

#00359D

Tritanopia (blue-blind)

#004C62

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c2a9f;
/* rgb */ color: rgb(28, 42, 159);
/* oklch */ color: oklch(36.9% 0.186 268.6);

Tailwind

colors: {
  custom: {
    50: '#7264bd',
    500: '#1c2a9f',
    950: '#000000',
  },
}

SCSS

$custom: #1c2a9f;
$custom-light: #7264bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2a9f",
  "rgb": {
    "r": 28,
    "g": 42,
    "b": 159
  },
  "hsl": {
    "h": 233.588,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.36903,
    "c": 0.18562,
    "h": 268.6
  },
  "luminance": 0.04406
}

Semantic roles & 50–950 ramp

primary

#1C2A9F

secondary

#C4B853

accent

#DA3BED

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090512

muted

#7B7A81

Preview Lab

Preview with #1C2A9F

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

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