#1C2F4E#1C2F4E

#1C2F4E is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.6% C 0.062 H 259.8°. Best body text is #FFFFFF at 13.41:1 contrast (WCAG AA passes).

Color values

HEX	#1C2F4E
RGB	rgb(28, 47, 78)
HSL	hsl(217, 47%, 21%)
HSV	hsv(217, 64%, 31%)
CMYK	cmyk(64.1%, 39.7%, 0%, 69.4%)
CIE-LAB	lab(19.35, 3.34, -21.41)
CIE-LCH	lch(19.35, 21.66, 278.86°)
OKLab	oklab(30.57% -0.0109 -0.0606)
OKLCH	oklch(30.57% 0.062 259.8)
XYZ	xyz(2.8701, 2.8297, 7.6012)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2F4E #4E3B1C

analogous

#1C484E #1C2F4E #221C4E

triadic

#1C2F4E #4E1C2F #2F4E1C

tetradic

#1C2F4E #4E1C48 #4E3B1C #1C4E22

square

#1C2F4E #4E1C48 #4E3B1C #1C4E22

split-complementary

#1C2F4E #4E221C #484E1C

monochromatic

#080E17 #0C1421 #1C2F4E #2C4A7B #3C65A8

Accessibility & contrast

On white

13.41

#1C2F4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1C2F4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2F4E

13.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2F4E	#FFFFFF	#000000	##FFFFFF
##1C2F4E	1.00	13.41	1.57	13.41
#FFFFFF	13.41	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22314F

Deuteranopia (green-blind)

#1C2D4D

Tritanopia (blue-blind)

#00363A

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1c2f4e;
/* rgb */ color: rgb(28, 47, 78);
/* oklch */ color: oklch(30.6% 0.062 259.8);

Tailwind

colors: {
  custom: {
    50: '#5d6780',
    500: '#1c2f4e',
    950: '#000000',
  },
}

SCSS

$custom: #1c2f4e;
$custom-light: #5d6780;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2f4e",
  "rgb": {
    "r": 28,
    "g": 47,
    "b": 78
  },
  "hsl": {
    "h": 217.2,
    "s": 47.17,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30567,
    "c": 0.06158,
    "h": 259.8
  },
  "luminance": 0.0283
}

Semantic roles & 50–950 ramp

primary

#1C2F4E

secondary

#846B42

accent

#A451D7

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #1C2F4E

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

Preview Lab → · Contrast checker → · Palette generator →