#1C2B8B#1C2B8B

#1C2B8B is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.0% C 0.159 H 269.0°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#1C2B8B
RGB	rgb(28, 43, 139)
HSL	hsl(232, 66%, 33%)
HSV	hsv(232, 80%, 55%)
CMYK	cmyk(79.9%, 69.1%, 0%, 45.5%)
CIE-LAB	lab(23.13, 30.44, -54.75)
CIE-LCH	lch(23.13, 62.65, 299.08°)
OKLab	oklab(34.95% -0.0028 -0.1585)
OKLCH	oklch(34.95% 0.159 269)
XYZ	xyz(6.0014, 3.8380, 24.8456)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2B8B #8B7C1C

analogous

#1C628B #1C2B8B #451C8B

triadic

#1C2B8B #8B1C2B #2B8B1C

tetradic

#1C2B8B #8B1C62 #8B7C1C #1C8B45

square

#1C2B8B #8B1C62 #8B7C1C #1C8B45

split-complementary

#1C2B8B #8B451C #628B1C

monochromatic

#070B25 #121B58 #1C2B8B #263BBE #475BDA

Accessibility & contrast

On white

11.88

#1C2B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1C2B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2B8B

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2B8B	#FFFFFF	#000000	##FFFFFF
##1C2B8B	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8E

Deuteranopia (green-blind)

#003289

Tritanopia (blue-blind)

#004557

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c2b8b;
/* rgb */ color: rgb(28, 43, 139);
/* oklch */ color: oklch(35.0% 0.159 269.0);

Tailwind

colors: {
  custom: {
    50: '#6c64ae',
    500: '#1c2b8b',
    950: '#000000',
  },
}

SCSS

$custom: #1c2b8b;
$custom-light: #6c64ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2b8b",
  "rgb": {
    "r": 28,
    "g": 43,
    "b": 139
  },
  "hsl": {
    "h": 231.892,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.34953,
    "c": 0.15853,
    "h": 269
  },
  "luminance": 0.03839
}

Semantic roles & 50–950 ramp

primary

#1C2B8B

secondary

#BCAC47

accent

#D23EE9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1C2B8B

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

Preview Lab → · Contrast checker → · Palette generator →