#1B4E65#1B4E65

#1B4E65 is a dark, moderate cyan. Relative luminance 0.066; OKLCH L 40.1% C 0.066 H 231.3°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E65
RGB	rgb(27, 78, 101)
HSL	hsl(199, 58%, 25%)
HSV	hsv(199, 73%, 40%)
CMYK	cmyk(73.3%, 22.8%, 0%, 60.4%)
CIE-LAB	lab(30.93, -8.59, -18.31)
CIE-LCH	lch(30.93, 20.23, 244.86°)
OKLab	oklab(40.09% -0.0412 -0.0514)
OKLCH	oklch(40.09% 0.066 231.3)
XYZ	xyz(5.5244, 6.6208, 13.2962)
Luminance	0.0662 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E65 #65321B

analogous

#1B6557 #1B4E65 #1B2965

triadic

#1B4E65 #651B4E #4E651B

tetradic

#1B4E65 #571B65 #65321B #29651B

square

#1B4E65 #571B65 #65321B #29651B

split-complementary

#1B4E65 #651B29 #65571B

monochromatic

#061318 #0E2935 #1B4E65 #287395 #3599C6

Accessibility & contrast

On white

9.04

#1B4E65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1B4E65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E65

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E65	#FFFFFF	#000000	##FFFFFF
##1B4E65	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424D66

Deuteranopia (green-blind)

#384665

Tritanopia (blue-blind)

#005456

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1b4e65;
/* rgb */ color: rgb(27, 78, 101);
/* oklch */ color: oklch(40.1% 0.066 231.3);

Tailwind

colors: {
  custom: {
    50: '#627f91',
    500: '#1b4e65',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e65;
$custom-light: #627f91;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e65",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 101
  },
  "hsl": {
    "h": 198.649,
    "s": 57.813,
    "l": 25.098
  },
  "oklch": {
    "l": 0.40085,
    "c": 0.06587,
    "h": 231.3
  },
  "luminance": 0.06621
}

Semantic roles & 50–950 ramp

primary

#1B4E65

secondary

#9A5D41

accent

#7747E1

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #1B4E65

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

Preview Lab → · Contrast checker → · Palette generator →