#1C4F8D#1C4F8D

#1C4F8D is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.8% C 0.116 H 255.4°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#1C4F8D
RGB	rgb(28, 79, 141)
HSL	hsl(213, 67%, 33%)
HSV	hsv(213, 80%, 55%)
CMYK	cmyk(80.1%, 44%, 0%, 44.7%)
CIE-LAB	lab(33.48, 6.58, -39.19)
CIE-LCH	lch(33.48, 39.74, 279.53°)
OKLab	oklab(42.82% -0.0292 -0.1122)
OKLCH	oklch(42.82% 0.116 255.4)
XYZ	xyz(8.0808, 7.7610, 26.2663)
Luminance	0.0776 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4F8D #8D5A1C

analogous

#1C878D #1C4F8D #211C8D

triadic

#1C4F8D #8D1C4F #4F8D1C

tetradic

#1C4F8D #8D1C87 #8D5A1C #1C8D21

square

#1C4F8D #8D1C87 #8D5A1C #1C8D21

split-complementary

#1C4F8D #8D211C #878D1C

monochromatic

#081627 #12325A #1C4F8D #266CC0 #498BDB

Accessibility & contrast

On white

8.23

#1C4F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#1C4F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4F8D

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4F8D	#FFFFFF	#000000	##FFFFFF
##1C4F8D	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#30548F

Deuteranopia (green-blind)

#1B4A8C

Tritanopia (blue-blind)

#005E67

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1c4f8d;
/* rgb */ color: rgb(28, 79, 141);
/* oklch */ color: oklch(42.8% 0.116 255.4);

Tailwind

colors: {
  custom: {
    50: '#6b7faf',
    500: '#1c4f8d',
    950: '#000000',
  },
}

SCSS

$custom: #1c4f8d;
$custom-light: #6b7faf;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4f8d",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 141
  },
  "hsl": {
    "h": 212.92,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.4282,
    "c": 0.11596,
    "h": 255.4
  },
  "luminance": 0.07762
}

Semantic roles & 50–950 ramp

primary

#1C4F8D

secondary

#BD8848

accent

#9C3EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1C4F8D

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

Preview Lab → · Contrast checker → · Palette generator →