#1C4F71#1C4F71

#1C4F71 is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.0% C 0.078 H 241.7°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#1C4F71
RGB	rgb(28, 79, 113)
HSL	hsl(204, 60%, 28%)
HSV	hsv(204, 75%, 44%)
CMYK	cmyk(75.2%, 30.1%, 0%, 55.7%)
CIE-LAB	lab(31.88, -4.50, -24.40)
CIE-LCH	lch(31.88, 24.81, 259.55°)
OKLab	oklab(41.04% -0.0372 -0.0689)
OKLCH	oklch(41.04% 0.078 241.7)
XYZ	xyz(6.2544, 7.0304, 16.6470)
Luminance	0.0703 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4F71 #713E1C

analogous

#1C7168 #1C4F71 #1C2471

triadic

#1C4F71 #711C4F #4F711C

tetradic

#1C4F71 #681C71 #713E1C #24711C

square

#1C4F71 #681C71 #713E1C #24711C

split-complementary

#1C4F71 #711C24 #71681C

monochromatic

#061119 #102D40 #1C4F71 #2871A2 #3993CE

Accessibility & contrast

On white

8.73

#1C4F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#1C4F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4F71

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4F71	#FFFFFF	#000000	##FFFFFF
##1C4F71	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F4F73

Deuteranopia (green-blind)

#344770

Tritanopia (blue-blind)

#00575B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1c4f71;
/* rgb */ color: rgb(28, 79, 113);
/* oklch */ color: oklch(41.0% 0.078 241.7);

Tailwind

colors: {
  custom: {
    50: '#64809a',
    500: '#1c4f71',
    950: '#000000',
  },
}

SCSS

$custom: #1c4f71;
$custom-light: #64809a;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4f71",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 113
  },
  "hsl": {
    "h": 204,
    "s": 60.284,
    "l": 27.647
  },
  "oklch": {
    "l": 0.4104,
    "c": 0.07832,
    "h": 241.7
  },
  "luminance": 0.07031
}

Semantic roles & 50–950 ramp

primary

#1C4F71

secondary

#A66B43

accent

#8444E3

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1C4F71

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

Preview Lab → · Contrast checker → · Palette generator →