#1B4965#1B4965

#1B4965 is a dark, moderate cyan. Relative luminance 0.059; OKLCH L 38.8% C 0.069 H 238.9°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#1B4965
RGB	rgb(27, 73, 101)
HSL	hsl(203, 58%, 25%)
HSV	hsv(203, 73%, 40%)
CMYK	cmyk(73.3%, 27.7%, 0%, 60.4%)
CIE-LAB	lab(29.25, -5.46, -20.92)
CIE-LCH	lch(29.25, 21.62, 255.38°)
OKLab	oklab(38.75% -0.0355 -0.0589)
OKLCH	oklch(38.75% 0.069 238.9)
XYZ	xyz(5.1826, 5.9371, 13.1822)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4965 #65371B

analogous

#1B655C #1B4965 #1B2465

triadic

#1B4965 #651B49 #49651B

tetradic

#1B4965 #5C1B65 #65371B #24651B

square

#1B4965 #5C1B65 #65371B #24651B

split-complementary

#1B4965 #651B24 #655C1B

monochromatic

#061118 #0E2635 #1B4965 #286C95 #358FC6

Accessibility & contrast

On white

9.60

#1B4965 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1B4965 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4965

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4965	#FFFFFF	#000000	##FFFFFF
##1B4965	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4966

Deuteranopia (green-blind)

#324265

Tritanopia (blue-blind)

#005053

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1b4965;
/* rgb */ color: rgb(27, 73, 101);
/* oklch */ color: oklch(38.8% 0.069 238.9);

Tailwind

colors: {
  custom: {
    50: '#627b91',
    500: '#1b4965',
    950: '#000000',
  },
}

SCSS

$custom: #1b4965;
$custom-light: #627b91;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4965",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 101
  },
  "hsl": {
    "h": 202.703,
    "s": 57.813,
    "l": 25.098
  },
  "oklch": {
    "l": 0.38753,
    "c": 0.06879,
    "h": 238.9
  },
  "luminance": 0.05938
}

Semantic roles & 50–950 ramp

primary

#1B4965

secondary

#9A6341

accent

#8147E1

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05090C

muted

#7A7B7D

Preview Lab

Preview with #1B4965

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

Preview Lab → · Contrast checker → · Palette generator →