#1C339F#1C339F

#1C339F is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.4% C 0.176 H 267.3°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#1C339F
RGB	rgb(28, 51, 159)
HSL	hsl(229, 70%, 37%)
HSV	hsv(229, 82%, 62%)
CMYK	cmyk(82.4%, 67.9%, 0%, 37.6%)
CIE-LAB	lab(27.07, 32.75, -60.59)
CIE-LCH	lch(27.07, 68.87, 298.39°)
OKLab	oklab(38.42% -0.0082 -0.1755)
OKLCH	oklch(38.42% 0.176 267.3)
XYZ	xyz(7.9185, 5.1168, 33.3645)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C339F #9F881C

analogous

#1C759F #1C339F #471C9F

triadic

#1C339F #9F1C33 #339F1C

tetradic

#1C339F #9F1C75 #9F881C #1C9F47

square

#1C339F #9F1C75 #9F881C #1C9F47

split-complementary

#1C339F #9F471C #759F1C

monochromatic

#0A1237 #13226B #1C339F #2544D3 #546DE1

Accessibility & contrast

On white

10.38

#1C339F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1C339F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C339F

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C339F	#FFFFFF	#000000	##FFFFFF
##1C339F	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A2

Deuteranopia (green-blind)

#003A9D

Tritanopia (blue-blind)

#005064

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1c339f;
/* rgb */ color: rgb(28, 51, 159);
/* oklch */ color: oklch(38.4% 0.176 267.3);

Tailwind

colors: {
  custom: {
    50: '#716abc',
    500: '#1c339f',
    950: '#000000',
  },
}

SCSS

$custom: #1c339f;
$custom-light: #716abc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c339f",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 159
  },
  "hsl": {
    "h": 229.466,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.3842,
    "c": 0.17569,
    "h": 267.3
  },
  "luminance": 0.05118
}

Semantic roles & 50–950 ramp

primary

#1C339F

secondary

#C4B053

accent

#CE3BED

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1C339F

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

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