#1C2B7E#1C2B7E

#1C2B7E is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.7% C 0.141 H 269.2°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#1C2B7E
RGB	rgb(28, 43, 126)
HSL	hsl(231, 64%, 30%)
HSV	hsv(231, 78%, 49%)
CMYK	cmyk(77.8%, 65.9%, 0%, 50.6%)
CIE-LAB	lab(21.87, 25.43, -48.65)
CIE-LCH	lch(21.87, 54.90, 297.60°)
OKLab	oklab(33.65% -0.002 -0.1407)
OKLCH	oklch(33.65% 0.141 269.2)
XYZ	xyz(5.1074, 3.4804, 20.1372)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2B7E #7E6F1C

analogous

#1C5C7E #1C2B7E #3E1C7E

triadic

#1C2B7E #7E1C2B #2B7E1C

tetradic

#1C2B7E #7E1C5C #7E6F1C #1C7E3E

square

#1C2B7E #7E1C5C #7E6F1C #1C7E3E

split-complementary

#1C2B7E #7E3E1C #5C7E1C

monochromatic

#06091A #111A4C #1C2B7E #273CB0 #4057D5

Accessibility & contrast

On white

12.38

#1C2B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1C2B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2B7E

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2B7E	#FFFFFF	#000000	##FFFFFF
##1C2B7E	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003981

Deuteranopia (green-blind)

#00307C

Tritanopia (blue-blind)

#004150

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c2b7e;
/* rgb */ color: rgb(28, 43, 126);
/* oklch */ color: oklch(33.7% 0.141 269.2);

Tailwind

colors: {
  custom: {
    50: '#6964a4',
    500: '#1c2b7e',
    950: '#000000',
  },
}

SCSS

$custom: #1c2b7e;
$custom-light: #6964a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2b7e",
  "rgb": {
    "r": 28,
    "g": 43,
    "b": 126
  },
  "hsl": {
    "h": 230.816,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.3365,
    "c": 0.14067,
    "h": 269.2
  },
  "luminance": 0.03481
}

Semantic roles & 50–950 ramp

primary

#1C2B7E

secondary

#B2A144

accent

#CD41E7

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1C2B7E

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

Preview Lab → · Contrast checker → · Palette generator →