#1C358E#1C358E

#1C358E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.150 H 266.6°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#1C358E
RGB	rgb(28, 53, 142)
HSL	hsl(227, 67%, 33%)
HSV	hsv(227, 80%, 56%)
CMYK	cmyk(80.3%, 62.7%, 0%, 44.3%)
CIE-LAB	lab(26.00, 24.83, -51.91)
CIE-LCH	lch(26.00, 57.55, 295.56°)
OKLab	oklab(37.15% -0.0088 -0.1501)
OKLCH	oklch(37.15% 0.15 266.6)
XYZ	xyz(6.6328, 4.7453, 26.1523)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C358E #8E751C

analogous

#1C6E8E #1C358E #3C1C8E

triadic

#1C358E #8E1C35 #358E1C

tetradic

#1C358E #8E1C6E #8E751C #1C8E3C

square

#1C358E #8E1C6E #8E751C #1C8E3C

split-complementary

#1C358E #8E3C1C #6E8E1C

monochromatic

#080F28 #12225B #1C358E #2648C1 #4969DB

Accessibility & contrast

On white

10.77

#1C358E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1C358E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C358E

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C358E	#FFFFFF	#000000	##FFFFFF
##1C358E	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004391

Deuteranopia (green-blind)

#00388C

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1c358e;
/* rgb */ color: rgb(28, 53, 142);
/* oklch */ color: oklch(37.1% 0.150 266.6);

Tailwind

colors: {
  custom: {
    50: '#6c6cb0',
    500: '#1c358e',
    950: '#000000',
  },
}

SCSS

$custom: #1c358e;
$custom-light: #6c6cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c358e",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 142
  },
  "hsl": {
    "h": 226.842,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.37149,
    "c": 0.15037,
    "h": 266.6
  },
  "luminance": 0.04746
}

Semantic roles & 50–950 ramp

primary

#1C358E

secondary

#BDA449

accent

#C43EEA

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1C358E

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

Preview Lab → · Contrast checker → · Palette generator →