#1C2C81#1C2C81

#1C2C81 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.1% C 0.144 H 268.9°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#1C2C81
RGB	rgb(28, 44, 129)
HSL	hsl(230, 64%, 31%)
HSV	hsv(230, 78%, 51%)
CMYK	cmyk(78.3%, 65.9%, 0%, 49.4%)
CIE-LAB	lab(22.42, 25.92, -49.65)
CIE-LCH	lch(22.42, 56.01, 297.56°)
OKLab	oklab(34.14% -0.0027 -0.1436)
OKLCH	oklch(34.14% 0.144 268.9)
XYZ	xyz(5.3407, 3.6326, 21.1843)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2C81 #81711C

analogous

#1C5E81 #1C2C81 #3E1C81

triadic

#1C2C81 #811C2C #2C811C

tetradic

#1C2C81 #811C5E #81711C #1C813E

square

#1C2C81 #811C5E #81711C #1C813E

split-complementary

#1C2C81 #813E1C #5E811C

monochromatic

#060A1C #111B4F #1C2C81 #273DB3 #4259D6

Accessibility & contrast

On white

12.16

#1C2C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1C2C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2C81

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2C81	#FFFFFF	#000000	##FFFFFF
##1C2C81	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A84

Deuteranopia (green-blind)

#00317F

Tritanopia (blue-blind)

#004252

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1c2c81;
/* rgb */ color: rgb(28, 44, 129);
/* oklch */ color: oklch(34.1% 0.144 268.9);

Tailwind

colors: {
  custom: {
    50: '#6a65a6',
    500: '#1c2c81',
    950: '#000000',
  },
}

SCSS

$custom: #1c2c81;
$custom-light: #6a65a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2c81",
  "rgb": {
    "r": 28,
    "g": 44,
    "b": 129
  },
  "hsl": {
    "h": 230.495,
    "s": 64.331,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34137,
    "c": 0.14362,
    "h": 268.9
  },
  "luminance": 0.03633
}

Semantic roles & 50–950 ramp

primary

#1C2C81

secondary

#B4A344

accent

#CD40E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1C2C81

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

Preview Lab → · Contrast checker → · Palette generator →