#1C248B#1C248B

#1C248B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.8% C 0.166 H 270.2°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#1C248B
RGB	rgb(28, 36, 139)
HSL	hsl(236, 66%, 33%)
HSV	hsv(236, 80%, 55%)
CMYK	cmyk(79.9%, 74.1%, 0%, 45.5%)
CIE-LAB	lab(21.48, 34.95, -57.47)
CIE-LCH	lch(21.48, 67.27, 301.31°)
OKLab	oklab(33.76% 0.0007 -0.1664)
OKLCH	oklch(33.76% 0.166 270.2)
XYZ	xyz(5.7684, 3.3721, 24.7680)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C248B #8B831C

analogous

#1C5B8B #1C248B #4C1C8B

triadic

#1C248B #8B1C24 #248B1C

tetradic

#1C248B #8B1C5B #8B831C #1C8B4C

square

#1C248B #8B1C5B #8B831C #1C8B4C

split-complementary

#1C248B #8B4C1C #5B8B1C

monochromatic

#070A25 #121758 #1C248B #2631BE #4752DA

Accessibility & contrast

On white

12.54

#1C248B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1C248B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C248B

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C248B	#FFFFFF	#000000	##FFFFFF
##1C248B	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398E

Deuteranopia (green-blind)

#002E89

Tritanopia (blue-blind)

#004155

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c248b;
/* rgb */ color: rgb(28, 36, 139);
/* oklch */ color: oklch(33.8% 0.166 270.2);

Tailwind

colors: {
  custom: {
    50: '#6d5fae',
    500: '#1c248b',
    950: '#000000',
  },
}

SCSS

$custom: #1c248b;
$custom-light: #6d5fae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c248b",
  "rgb": {
    "r": 28,
    "g": 36,
    "b": 139
  },
  "hsl": {
    "h": 235.676,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33759,
    "c": 0.16644,
    "h": 270.2
  },
  "luminance": 0.03373
}

Semantic roles & 50–950 ramp

primary

#1C248B

secondary

#BCB347

accent

#DD3EE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1C248B

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

Preview Lab → · Contrast checker → · Palette generator →