#1C357E#1C357E

#1C357E is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.7% C 0.128 H 265.8°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#1C357E
RGB	rgb(28, 53, 126)
HSL	hsl(225, 64%, 30%)
HSV	hsv(225, 78%, 49%)
CMYK	cmyk(77.8%, 57.9%, 0%, 50.6%)
CIE-LAB	lab(24.64, 18.44, -44.14)
CIE-LCH	lch(24.64, 47.84, 292.67°)
OKLab	oklab(35.71% -0.0093 -0.1273)
OKLCH	oklch(35.71% 0.128 265.8)
XYZ	xyz(5.5166, 4.2988, 20.2736)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C357E #7E651C

analogous

#1C667E #1C357E #341C7E

triadic

#1C357E #7E1C35 #357E1C

tetradic

#1C357E #7E1C66 #7E651C #1C7E34

square

#1C357E #7E1C66 #7E651C #1C7E34

split-complementary

#1C357E #7E341C #667E1C

monochromatic

#060B1A #11204C #1C357E #274AB0 #4066D5

Accessibility & contrast

On white

11.29

#1C357E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1C357E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C357E

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C357E	#FFFFFF	#000000	##FFFFFF
##1C357E	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F81

Deuteranopia (green-blind)

#00367D

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1c357e;
/* rgb */ color: rgb(28, 53, 126);
/* oklch */ color: oklch(35.7% 0.128 265.8);

Tailwind

colors: {
  custom: {
    50: '#686ba4',
    500: '#1c357e',
    950: '#000000',
  },
}

SCSS

$custom: #1c357e;
$custom-light: #686ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c357e",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 126
  },
  "hsl": {
    "h": 224.694,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.35707,
    "c": 0.12764,
    "h": 265.8
  },
  "luminance": 0.04299
}

Semantic roles & 50–950 ramp

primary

#1C357E

secondary

#B29644

accent

#BC41E7

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1C357E

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

Preview Lab → · Contrast checker → · Palette generator →