#1C2D5B#1C2D5B

#1C2D5B is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.0% C 0.085 H 266.3°. Best body text is #FFFFFF at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#1C2D5B
RGB	rgb(28, 45, 91)
HSL	hsl(224, 53%, 23%)
HSV	hsv(224, 69%, 36%)
CMYK	cmyk(69.2%, 50.5%, 0%, 64.3%)
CIE-LAB	lab(19.55, 9.96, -29.77)
CIE-LCH	lch(19.55, 31.39, 288.50°)
OKLab	oklab(31% -0.0055 -0.0851)
OKLCH	oklch(31% 0.085 266.3)
XYZ	xyz(3.3050, 2.8787, 10.2770)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2D5B #5B4A1C

analogous

#1C4C5B #1C2D5B #2A1C5B

triadic

#1C2D5B #5B1C2D #2D5B1C

tetradic

#1C2D5B #5B1C4C #5B4A1C #1C5B2A

square

#1C2D5B #5B1C4C #5B4A1C #1C5B2A

split-complementary

#1C2D5B #5B2A1C #4C5B1C

monochromatic

#070C17 #0E162C #1C2D5B #2A448A #395BB9

Accessibility & contrast

On white

13.33

#1C2D5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1C2D5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2D5B

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2D5B	#FFFFFF	#000000	##FFFFFF
##1C2D5B	1.00	13.33	1.58	13.33
#FFFFFF	13.33	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16325D

Deuteranopia (green-blind)

#0A2D5A

Tritanopia (blue-blind)

#00383F

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1c2d5b;
/* rgb */ color: rgb(28, 45, 91);
/* oklch */ color: oklch(31.0% 0.085 266.3);

Tailwind

colors: {
  custom: {
    50: '#60658a',
    500: '#1c2d5b',
    950: '#000000',
  },
}

SCSS

$custom: #1c2d5b;
$custom-light: #60658a;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2d5b",
  "rgb": {
    "r": 28,
    "g": 45,
    "b": 91
  },
  "hsl": {
    "h": 223.81,
    "s": 52.941,
    "l": 23.333
  },
  "oklch": {
    "l": 0.30999,
    "c": 0.08532,
    "h": 266.3
  },
  "luminance": 0.02879
}

Semantic roles & 50–950 ramp

primary

#1C2D5B

secondary

#907B42

accent

#B54BDC

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05050B

muted

#797A7C

Preview Lab

Preview with #1C2D5B

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

Preview Lab → · Contrast checker → · Palette generator →