#1C306D#1C306D

#1C306D is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.2% C 0.109 H 266.7°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#1C306D
RGB	rgb(28, 48, 109)
HSL	hsl(225, 59%, 27%)
HSV	hsv(225, 74%, 43%)
CMYK	cmyk(74.3%, 56%, 0%, 57.3%)
CIE-LAB	lab(21.82, 15.10, -37.88)
CIE-LCH	lch(21.82, 40.78, 291.73°)
OKLab	oklab(33.15% -0.0063 -0.109)
OKLCH	oklch(33.15% 0.109 266.7)
XYZ	xyz(4.2952, 3.4645, 14.9074)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C306D #6D591C

analogous

#1C596D #1C306D #311C6D

triadic

#1C306D #6D1C30 #306D1C

tetradic

#1C306D #6D1C59 #6D591C #1C6D31

square

#1C306D #6D1C59 #6D591C #1C6D31

split-complementary

#1C306D #6D311C #596D1C

monochromatic

#060B18 #0F1B3C #1C306D #29459E #385CCC

Accessibility & contrast

On white

12.40

#1C306D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1C306D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C306D

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C306D	#FFFFFF	#000000	##FFFFFF
##1C306D	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05386F

Deuteranopia (green-blind)

#00316C

Tritanopia (blue-blind)

#003F49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c306d;
/* rgb */ color: rgb(28, 48, 109);
/* oklch */ color: oklch(33.2% 0.109 266.7);

Tailwind

colors: {
  custom: {
    50: '#646797',
    500: '#1c306d',
    950: '#000000',
  },
}

SCSS

$custom: #1c306d;
$custom-light: #646797;
$custom-dark: #000000;

JSON

{
  "hex": "#1c306d",
  "rgb": {
    "r": 28,
    "g": 48,
    "b": 109
  },
  "hsl": {
    "h": 225.185,
    "s": 59.124,
    "l": 26.863
  },
  "oklch": {
    "l": 0.33151,
    "c": 0.10915,
    "h": 266.7
  },
  "luminance": 0.03465
}

Semantic roles & 50–950 ramp

primary

#1C306D

secondary

#A28A43

accent

#BC45E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1C306D

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

Preview Lab → · Contrast checker → · Palette generator →