#1C306F#1C306F

#1C306F is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.3% C 0.112 H 266.9°. Best body text is #FFFFFF at 12.34:1 contrast (WCAG AA passes).

Color values

HEX	#1C306F
RGB	rgb(28, 48, 111)
HSL	hsl(226, 60%, 27%)
HSV	hsv(226, 75%, 44%)
CMYK	cmyk(74.8%, 56.8%, 0%, 56.5%)
CIE-LAB	lab(21.97, 15.91, -38.91)
CIE-LCH	lch(21.97, 42.04, 292.24°)
OKLab	oklab(33.32% -0.0062 -0.112)
OKLCH	oklch(33.32% 0.112 266.9)
XYZ	xyz(4.4041, 3.5080, 15.4809)
Luminance	0.0351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C306F #6F5B1C

analogous

#1C5A6F #1C306F #321C6F

triadic

#1C306F #6F1C30 #306F1C

tetradic

#1C306F #6F1C5A #6F5B1C #1C6F32

square

#1C306F #6F1C5A #6F5B1C #1C6F32

split-complementary

#1C306F #6F321C #5A6F1C

monochromatic

#060B18 #101B3E #1C306F #2845A0 #385CCD

Accessibility & contrast

On white

12.34

#1C306F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1C306F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C306F

12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C306F	#FFFFFF	#000000	##FFFFFF
##1C306F	1.00	12.34	1.70	12.34
#FFFFFF	12.34	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#013971

Deuteranopia (green-blind)

#00316E

Tritanopia (blue-blind)

#003F4A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1c306f;
/* rgb */ color: rgb(28, 48, 111);
/* oklch */ color: oklch(33.3% 0.112 266.9);

Tailwind

colors: {
  custom: {
    50: '#656799',
    500: '#1c306f',
    950: '#000000',
  },
}

SCSS

$custom: #1c306f;
$custom-light: #656799;
$custom-dark: #000000;

JSON

{
  "hex": "#1c306f",
  "rgb": {
    "r": 28,
    "g": 48,
    "b": 111
  },
  "hsl": {
    "h": 225.542,
    "s": 59.712,
    "l": 27.255
  },
  "oklch": {
    "l": 0.3332,
    "c": 0.11218,
    "h": 266.9
  },
  "luminance": 0.03508
}

Semantic roles & 50–950 ramp

primary

#1C306F

secondary

#A48C43

accent

#BD45E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1C306F

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

Preview Lab → · Contrast checker → · Palette generator →