#1C2B78#1C2B78

#1C2B78 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.1% C 0.132 H 269.2°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#1C2B78
RGB	rgb(28, 43, 120)
HSL	hsl(230, 62%, 29%)
HSV	hsv(230, 77%, 47%)
CMYK	cmyk(76.7%, 64.2%, 0%, 52.9%)
CIE-LAB	lab(21.32, 23.07, -45.74)
CIE-LCH	lch(21.32, 51.23, 296.76°)
OKLab	oklab(33.07% -0.0018 -0.1321)
OKLCH	oklch(33.07% 0.132 269.2)
XYZ	xyz(4.7318, 3.3302, 18.1591)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2B78 #78691C

analogous

#1C5978 #1C2B78 #3B1C78

triadic

#1C2B78 #781C2B #2B781C

tetradic

#1C2B78 #781C59 #78691C #1C783B

square

#1C2B78 #781C59 #78691C #1C783B

split-complementary

#1C2B78 #783B1C #59781C

monochromatic

#060919 #101946 #1C2B78 #283DAA #3D55D2

Accessibility & contrast

On white

12.60

#1C2B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1C2B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2B78

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2B78	#FFFFFF	#000000	##FFFFFF
##1C2B78	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387B

Deuteranopia (green-blind)

#002F77

Tritanopia (blue-blind)

#003F4D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1c2b78;
/* rgb */ color: rgb(28, 43, 120);
/* oklch */ color: oklch(33.1% 0.132 269.2);

Tailwind

colors: {
  custom: {
    50: '#6764a0',
    500: '#1c2b78',
    950: '#000000',
  },
}

SCSS

$custom: #1c2b78;
$custom-light: #6764a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2b78",
  "rgb": {
    "r": 28,
    "g": 43,
    "b": 120
  },
  "hsl": {
    "h": 230.217,
    "s": 62.162,
    "l": 29.02
  },
  "oklch": {
    "l": 0.33072,
    "c": 0.13215,
    "h": 269.2
  },
  "luminance": 0.03331
}

Semantic roles & 50–950 ramp

primary

#1C2B78

secondary

#AC9B44

accent

#CB43E5

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050F

muted

#7A797E

Preview Lab

Preview with #1C2B78

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

Preview Lab → · Contrast checker → · Palette generator →