#1C175F#1C175F

#1C175F is a dark, vivid blue. Relative luminance 0.017; OKLCH L 26.8% C 0.122 H 277.4°. Best body text is #FFFFFF at 15.70:1 contrast (WCAG AA passes).

Color values

HEX	#1C175F
RGB	rgb(28, 23, 95)
HSL	hsl(244, 61%, 23%)
HSV	hsv(244, 76%, 37%)
CMYK	cmyk(70.5%, 75.8%, 0%, 62.7%)
CIE-LAB	lab(13.74, 27.14, -41.87)
CIE-LCH	lch(13.74, 49.89, 302.95°)
OKLab	oklab(26.8% 0.0156 -0.1209)
OKLCH	oklch(26.8% 0.122 277.4)
XYZ	xyz(2.8502, 1.6856, 10.9994)
Luminance	0.0169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C175F #5A5F17

analogous

#17365F #1C175F #40175F

triadic

#1C175F #5F1C17 #175F1C

tetradic

#1C175F #5F1736 #5A5F17 #175F40

square

#1C175F #5F1736 #5A5F17 #175F40

split-complementary

#1C175F #5F4017 #365F17

monochromatic

#070619 #0D0B2E #1C175F #2B2390 #392FC2

Accessibility & contrast

On white

15.70

#1C175F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#1C175F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C175F

15.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C175F	#FFFFFF	#000000	##FFFFFF
##1C175F	1.00	15.70	1.34	15.70
#FFFFFF	15.70	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002661

Deuteranopia (green-blind)

#00205E

Tritanopia (blue-blind)

#002B39

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #1c175f;
/* rgb */ color: rgb(28, 23, 95);
/* oklch */ color: oklch(26.8% 0.122 277.4);

Tailwind

colors: {
  custom: {
    50: '#63558d',
    500: '#1c175f',
    950: '#000000',
  },
}

SCSS

$custom: #1c175f;
$custom-light: #63558d;
$custom-dark: #000000;

JSON

{
  "hex": "#1c175f",
  "rgb": {
    "r": 28,
    "g": 23,
    "b": 95
  },
  "hsl": {
    "h": 244.167,
    "s": 61.017,
    "l": 23.137
  },
  "oklch": {
    "l": 0.26798,
    "c": 0.12189,
    "h": 277.4
  },
  "luminance": 0.01686
}

Semantic roles & 50–950 ramp

primary

#1C175F

secondary

#8F963C

accent

#E444D9

background

#F6F4F8

surface

#EBE8F0

border

#C6C4CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #1C175F

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

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