#1C4B7D#1C4B7D

#1C4B7D is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.8% C 0.098 H 252.6°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#1C4B7D
RGB	rgb(28, 75, 125)
HSL	hsl(211, 63%, 30%)
HSV	hsv(211, 78%, 49%)
CMYK	cmyk(77.6%, 40%, 0%, 51%)
CIE-LAB	lab(31.25, 2.83, -32.88)
CIE-LCH	lch(31.25, 33.00, 274.91°)
OKLab	oklab(40.77% -0.0293 -0.0938)
OKLCH	oklch(40.77% 0.098 252.6)
XYZ	xyz(6.6953, 6.7589, 20.3498)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4B7D #7D4E1C

analogous

#1C7B7D #1C4B7D #1E1C7D

triadic

#1C4B7D #7D1C4B #4B7D1C

tetradic

#1C4B7D #7D1C7B #7D4E1C #1C7D1E

square

#1C4B7D #7D1C7B #7D4E1C #1C7D1E

split-complementary

#1C4B7D #7D1E1C #7B7D1C

monochromatic

#060F19 #112D4B #1C4B7D #2769AF #3F87D4

Accessibility & contrast

On white

8.93

#1C4B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1C4B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4B7D

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4B7D	#FFFFFF	#000000	##FFFFFF
##1C4B7D	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344E7F

Deuteranopia (green-blind)

#25457C

Tritanopia (blue-blind)

#00575E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c4b7d;
/* rgb */ color: rgb(28, 75, 125);
/* oklch */ color: oklch(40.8% 0.098 252.6);

Tailwind

colors: {
  custom: {
    50: '#677ca3',
    500: '#1c4b7d',
    950: '#000000',
  },
}

SCSS

$custom: #1c4b7d;
$custom-light: #677ca3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4b7d",
  "rgb": {
    "r": 28,
    "g": 75,
    "b": 125
  },
  "hsl": {
    "h": 210.928,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.40766,
    "c": 0.09824,
    "h": 252.6
  },
  "luminance": 0.0676
}

Semantic roles & 50–950 ramp

primary

#1C4B7D

secondary

#B17C44

accent

#9641E6

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1C4B7D

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

Preview Lab → · Contrast checker → · Palette generator →