#1C284F#1C284F

#1C284F is a dark, moderate blue. Relative luminance 0.023; OKLCH L 28.9% C 0.073 H 268.7°. Best body text is #FFFFFF at 14.33:1 contrast (WCAG AA passes).

Color values

HEX	#1C284F
RGB	rgb(28, 40, 79)
HSL	hsl(226, 48%, 21%)
HSV	hsv(226, 65%, 31%)
CMYK	cmyk(64.6%, 49.4%, 0%, 69%)
CIE-LAB	lab(17.13, 8.80, -25.61)
CIE-LCH	lch(17.13, 27.08, 288.96°)
OKLab	oklab(28.87% -0.0017 -0.073)
OKLCH	oklch(28.87% 0.073 268.7)
XYZ	xyz(2.6485, 2.3288, 7.7055)
Luminance	0.0233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C284F #4F431C

analogous

#1C414F #1C284F #291C4F

triadic

#1C284F #4F1C28 #284F1C

tetradic

#1C284F #4F1C41 #4F431C #1C4F29

square

#1C284F #4F1C41 #4F431C #1C4F29

split-complementary

#1C284F #4F291C #414F1C

monochromatic

#080B17 #0C1122 #1C284F #2C3F7C #3C56A9

Accessibility & contrast

On white

14.33

#1C284F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1C284F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C284F

14.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C284F	#FFFFFF	#000000	##FFFFFF
##1C284F	1.00	14.33	1.47	14.33
#FFFFFF	14.33	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#162D50

Deuteranopia (green-blind)

#0F284E

Tritanopia (blue-blind)

#003137

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1c284f;
/* rgb */ color: rgb(28, 40, 79);
/* oklch */ color: oklch(28.9% 0.073 268.7);

Tailwind

colors: {
  custom: {
    50: '#5d6180',
    500: '#1c284f',
    950: '#000000',
  },
}

SCSS

$custom: #1c284f;
$custom-light: #5d6180;
$custom-dark: #000000;

JSON

{
  "hex": "#1c284f",
  "rgb": {
    "r": 28,
    "g": 40,
    "b": 79
  },
  "hsl": {
    "h": 225.882,
    "s": 47.664,
    "l": 20.98
  },
  "oklch": {
    "l": 0.28873,
    "c": 0.07303,
    "h": 268.7
  },
  "luminance": 0.02329
}

Semantic roles & 50–950 ramp

primary

#1C284F

secondary

#857542

accent

#B851D7

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #1C284F

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

Preview Lab → · Contrast checker → · Palette generator →