#1C3595#1C3595

#1C3595 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.8% C 0.160 H 266.8°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#1C3595
RGB	rgb(28, 53, 149)
HSL	hsl(228, 68%, 35%)
HSV	hsv(228, 81%, 58%)
CMYK	cmyk(81.2%, 64.4%, 0%, 41.6%)
CIE-LAB	lab(26.63, 27.58, -55.20)
CIE-LCH	lch(26.63, 61.70, 296.55°)
OKLab	oklab(37.81% -0.0089 -0.1597)
OKLCH	oklch(37.81% 0.16 266.8)
XYZ	xyz(7.1749, 4.9622, 29.0076)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3595 #957C1C

analogous

#1C7295 #1C3595 #3F1C95

triadic

#1C3595 #951C35 #35951C

tetradic

#1C3595 #951C72 #957C1C #1C953F

square

#1C3595 #951C72 #957C1C #1C953F

split-complementary

#1C3595 #953F1C #72951C

monochromatic

#09102E #122361 #1C3595 #2647C9 #4E6BDE

Accessibility & contrast

On white

10.54

#1C3595 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1C3595 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3595

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3595	#FFFFFF	#000000	##FFFFFF
##1C3595	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004598

Deuteranopia (green-blind)

#003993

Tritanopia (blue-blind)

#004E60

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1c3595;
/* rgb */ color: rgb(28, 53, 149);
/* oklch */ color: oklch(37.8% 0.160 266.8);

Tailwind

colors: {
  custom: {
    50: '#6e6cb5',
    500: '#1c3595',
    950: '#000000',
  },
}

SCSS

$custom: #1c3595;
$custom-light: #6e6cb5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3595",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 149
  },
  "hsl": {
    "h": 227.603,
    "s": 68.362,
    "l": 34.706
  },
  "oklch": {
    "l": 0.3781,
    "c": 0.15998,
    "h": 266.8
  },
  "luminance": 0.04963
}

Semantic roles & 50–950 ramp

primary

#1C3595

secondary

#C0A84D

accent

#C73DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1C3595

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

Preview Lab → · Contrast checker → · Palette generator →