#1C348F#1C348F

#1C348F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.0% C 0.153 H 266.9°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#1C348F
RGB	rgb(28, 52, 143)
HSL	hsl(227, 67%, 34%)
HSV	hsv(227, 80%, 56%)
CMYK	cmyk(80.4%, 63.6%, 0%, 43.9%)
CIE-LAB	lab(25.82, 25.91, -52.82)
CIE-LCH	lch(25.82, 58.84, 296.13°)
OKLab	oklab(37.05% -0.0082 -0.1528)
OKLCH	oklch(37.05% 0.153 266.9)
XYZ	xyz(6.6631, 4.6853, 26.5345)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C348F #8F771C

analogous

#1C6D8F #1C348F #3D1C8F

triadic

#1C348F #8F1C34 #348F1C

tetradic

#1C348F #8F1C6D #8F771C #1C8F3D

square

#1C348F #8F1C6D #8F771C #1C8F3D

split-complementary

#1C348F #8F3D1C #6D8F1C

monochromatic

#080F29 #12215C #1C348F #2647C2 #4A68DC

Accessibility & contrast

On white

10.84

#1C348F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1C348F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C348F

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C348F	#FFFFFF	#000000	##FFFFFF
##1C348F	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004392

Deuteranopia (green-blind)

#00388D

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1c348f;
/* rgb */ color: rgb(28, 52, 143);
/* oklch */ color: oklch(37.0% 0.153 266.9);

Tailwind

colors: {
  custom: {
    50: '#6d6bb1',
    500: '#1c348f',
    950: '#000000',
  },
}

SCSS

$custom: #1c348f;
$custom-light: #6d6bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c348f",
  "rgb": {
    "r": 28,
    "g": 52,
    "b": 143
  },
  "hsl": {
    "h": 227.478,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37045,
    "c": 0.15301,
    "h": 266.9
  },
  "luminance": 0.04686
}

Semantic roles & 50–950 ramp

primary

#1C348F

secondary

#BEA549

accent

#C63EEA

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1C348F

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

Preview Lab → · Contrast checker → · Palette generator →