#1C2B8E#1C2B8E

#1C2B8E is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.3% C 0.163 H 268.9°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#1C2B8E
RGB	rgb(28, 43, 142)
HSL	hsl(232, 67%, 33%)
HSV	hsv(232, 80%, 56%)
CMYK	cmyk(80.3%, 69.7%, 0%, 44.3%)
CIE-LAB	lab(23.43, 31.58, -56.13)
CIE-LCH	lch(23.43, 64.40, 299.36°)
OKLab	oklab(35.26% -0.003 -0.1625)
OKLCH	oklch(35.26% 0.163 268.9)
XYZ	xyz(6.2236, 3.9269, 26.0159)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2B8E #8E7F1C

analogous

#1C648E #1C2B8E #461C8E

triadic

#1C2B8E #8E1C2B #2B8E1C

tetradic

#1C2B8E #8E1C64 #8E7F1C #1C8E46

square

#1C2B8E #8E1C64 #8E7F1C #1C8E46

split-complementary

#1C2B8E #8E461C #648E1C

monochromatic

#080C28 #121C5B #1C2B8E #263AC1 #495CDB

Accessibility & contrast

On white

11.76

#1C2B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1C2B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2B8E

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2B8E	#FFFFFF	#000000	##FFFFFF
##1C2B8E	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D91

Deuteranopia (green-blind)

#00328C

Tritanopia (blue-blind)

#004659

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1c2b8e;
/* rgb */ color: rgb(28, 43, 142);
/* oklch */ color: oklch(35.3% 0.163 268.9);

Tailwind

colors: {
  custom: {
    50: '#6d64b0',
    500: '#1c2b8e',
    950: '#000000',
  },
}

SCSS

$custom: #1c2b8e;
$custom-light: #6d64b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2b8e",
  "rgb": {
    "r": 28,
    "g": 43,
    "b": 142
  },
  "hsl": {
    "h": 232.105,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.35262,
    "c": 0.16255,
    "h": 268.9
  },
  "luminance": 0.03928
}

Semantic roles & 50–950 ramp

primary

#1C2B8E

secondary

#BDAE49

accent

#D33EEA

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #1C2B8E

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

Preview Lab → · Contrast checker → · Palette generator →