#1C1958#1C1958

#1C1958 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.4% C 0.109 H 277.9°. Best body text is #FFFFFF at 15.80:1 contrast (WCAG AA passes).

Color values

HEX	#1C1958
RGB	rgb(28, 25, 88)
HSL	hsl(243, 56%, 22%)
HSV	hsv(243, 72%, 35%)
CMYK	cmyk(68.2%, 71.6%, 0%, 65.5%)
CIE-LAB	lab(13.51, 23.21, -37.55)
CIE-LCH	lch(13.51, 44.14, 301.72°)
OKLab	oklab(26.41% 0.0151 -0.1083)
OKLCH	oklch(26.41% 0.109 277.9)
XYZ	xyz(2.5874, 1.6465, 9.4121)
Luminance	0.0165 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1958 #555819

analogous

#193658 #1C1958 #3C1958

triadic

#1C1958 #581C19 #19581C

tetradic

#1C1958 #581936 #555819 #19583C

square

#1C1958 #581936 #555819 #19583C

split-complementary

#1C1958 #583C19 #365819

monochromatic

#080718 #0D0B28 #1C1958 #2B2788 #3A34B7

Accessibility & contrast

On white

15.80

#1C1958 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#1C1958 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1958

15.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1958	#FFFFFF	#000000	##FFFFFF
##1C1958	1.00	15.80	1.33	15.80
#FFFFFF	15.80	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255A

Deuteranopia (green-blind)

#002057

Tritanopia (blue-blind)

#002936

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #1c1958;
/* rgb */ color: rgb(28, 25, 88);
/* oklch */ color: oklch(26.4% 0.109 277.9);

Tailwind

colors: {
  custom: {
    50: '#615688',
    500: '#1c1958',
    950: '#000000',
  },
}

SCSS

$custom: #1c1958;
$custom-light: #615688;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1958",
  "rgb": {
    "r": 28,
    "g": 25,
    "b": 88
  },
  "hsl": {
    "h": 242.857,
    "s": 55.752,
    "l": 22.157
  },
  "oklch": {
    "l": 0.26411,
    "c": 0.10931,
    "h": 277.9
  },
  "luminance": 0.01647
}

Semantic roles & 50–950 ramp

primary

#1C1958

secondary

#8B8E3E

accent

#DF49D8

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030B

muted

#7A787C

Preview Lab

Preview with #1C1958

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

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