#1C179E#1C179E

#1C179E is a dark, highly saturated blue. Relative luminance 0.033; OKLCH L 34.3% C 0.201 H 270.2°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#1C179E
RGB	rgb(28, 23, 158)
HSL	hsl(242, 75%, 35%)
HSV	hsv(242, 85%, 62%)
CMYK	cmyk(82.3%, 85.4%, 0%, 38%)
CIE-LAB	lab(21.31, 48.31, -69.49)
CIE-LCH	lch(21.31, 84.63, 304.81°)
OKLab	oklab(34.3% 0.0008 -0.2011)
OKLCH	oklch(34.3% 0.201 270.2)
XYZ	xyz(6.9547, 3.3275, 32.6168)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C179E #999E17

analogous

#17569E #1C179E #5F179E

triadic

#1C179E #9E1C17 #179E1C

tetradic

#1C179E #9E1756 #999E17 #179E5F

square

#1C179E #9E1756 #999E17 #179E5F

split-complementary

#1C179E #9E5F17 #569E17

monochromatic

#090733 #130F69 #1C179E #251FD3 #504BE5

Accessibility & contrast

On white

12.61

#1C179E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1C179E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C179E

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C179E	#FFFFFF	#000000	##FFFFFF
##1C179E	1.00	12.61	1.67	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003AA2

Deuteranopia (green-blind)

#002C9C

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1c179e;
/* rgb */ color: rgb(28, 23, 158);
/* oklch */ color: oklch(34.3% 0.201 270.2);

Tailwind

colors: {
  custom: {
    50: '#7359bc',
    500: '#1c179e',
    950: '#000000',
  },
}

SCSS

$custom: #1c179e;
$custom-light: #7359bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c179e",
  "rgb": {
    "r": 28,
    "g": 23,
    "b": 158
  },
  "hsl": {
    "h": 242.222,
    "s": 74.586,
    "l": 35.49
  },
  "oklch": {
    "l": 0.34297,
    "c": 0.2011,
    "h": 270.2
  },
  "luminance": 0.03328
}

Semantic roles & 50–950 ramp

primary

#1C179E

secondary

#C2C64A

accent

#F137EA

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1C179E

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

Preview Lab → · Contrast checker → · Palette generator →