#1C175E#1C175E

#1C175E is a dark, vivid blue. Relative luminance 0.017; OKLCH L 26.7% C 0.120 H 277.5°. Best body text is #FFFFFF at 15.75:1 contrast (WCAG AA passes).

Color values

HEX	#1C175E
RGB	rgb(28, 23, 94)
HSL	hsl(244, 61%, 23%)
HSV	hsv(244, 76%, 37%)
CMYK	cmyk(70.2%, 75.5%, 0%, 63.1%)
CIE-LAB	lab(13.64, 26.77, -41.37)
CIE-LCH	lch(13.64, 49.28, 302.91°)
OKLab	oklab(26.69% 0.0158 -0.1194)
OKLCH	oklch(26.69% 0.12 277.5)
XYZ	xyz(2.8050, 1.6676, 10.7616)
Luminance	0.0167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C175E #595E17

analogous

#17355E #1C175E #3F175E

triadic

#1C175E #5E1C17 #175E1C

tetradic

#1C175E #5E1735 #595E17 #175E3F

square

#1C175E #5E1735 #595E17 #175E3F

split-complementary

#1C175E #5E3F17 #355E17

monochromatic

#070619 #0D0B2D #1C175E #2B238F #392FC0

Accessibility & contrast

On white

15.75

#1C175E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#1C175E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C175E

15.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C175E	#FFFFFF	#000000	##FFFFFF
##1C175E	1.00	15.75	1.33	15.75
#FFFFFF	15.75	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002660

Deuteranopia (green-blind)

#00205D

Tritanopia (blue-blind)

#002A38

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #1c175e;
/* rgb */ color: rgb(28, 23, 94);
/* oklch */ color: oklch(26.7% 0.120 277.5);

Tailwind

colors: {
  custom: {
    50: '#63558c',
    500: '#1c175e',
    950: '#000000',
  },
}

SCSS

$custom: #1c175e;
$custom-light: #63558c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c175e",
  "rgb": {
    "r": 28,
    "g": 23,
    "b": 94
  },
  "hsl": {
    "h": 244.225,
    "s": 60.684,
    "l": 22.941
  },
  "oklch": {
    "l": 0.2669,
    "c": 0.12049,
    "h": 277.5
  },
  "luminance": 0.01668
}

Semantic roles & 50–950 ramp

primary

#1C175E

secondary

#8F953C

accent

#E444D9

background

#F6F4F8

surface

#EBE8F0

border

#C6C4CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #1C175E

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

Preview Lab → · Contrast checker → · Palette generator →