#1C2B8F#1C2B8F

#1C2B8F is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.4% C 0.164 H 268.9°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#1C2B8F
RGB	rgb(28, 43, 143)
HSL	hsl(232, 67%, 34%)
HSV	hsv(232, 80%, 56%)
CMYK	cmyk(80.4%, 69.9%, 0%, 43.9%)
CIE-LAB	lab(23.53, 31.96, -56.58)
CIE-LCH	lch(23.53, 64.98, 299.46°)
OKLab	oklab(35.37% -0.0031 -0.1638)
OKLCH	oklch(35.37% 0.164 268.9)
XYZ	xyz(6.2990, 3.9571, 26.4131)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2B8F #8F801C

analogous

#1C648F #1C2B8F #461C8F

triadic

#1C2B8F #8F1C2B #2B8F1C

tetradic

#1C2B8F #8F1C64 #8F801C #1C8F46

square

#1C2B8F #8F1C64 #8F801C #1C8F46

split-complementary

#1C2B8F #8F461C #648F1C

monochromatic

#080C29 #121C5C #1C2B8F #263AC2 #4A5DDC

Accessibility & contrast

On white

11.72

#1C2B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1C2B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2B8F

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2B8F	#FFFFFF	#000000	##FFFFFF
##1C2B8F	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E92

Deuteranopia (green-blind)

#00338D

Tritanopia (blue-blind)

#004659

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1c2b8f;
/* rgb */ color: rgb(28, 43, 143);
/* oklch */ color: oklch(35.4% 0.164 268.9);

Tailwind

colors: {
  custom: {
    50: '#6d64b1',
    500: '#1c2b8f',
    950: '#000000',
  },
}

SCSS

$custom: #1c2b8f;
$custom-light: #6d64b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2b8f",
  "rgb": {
    "r": 28,
    "g": 43,
    "b": 143
  },
  "hsl": {
    "h": 232.174,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.35365,
    "c": 0.16387,
    "h": 268.9
  },
  "luminance": 0.03958
}

Semantic roles & 50–950 ramp

primary

#1C2B8F

secondary

#BEAE49

accent

#D43EEA

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #1C2B8F

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

Preview Lab → · Contrast checker → · Palette generator →