#1B5088#1B5088

#1B5088 is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.7% C 0.108 H 252.8°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#1B5088
RGB	rgb(27, 80, 136)
HSL	hsl(211, 67%, 32%)
HSV	hsv(211, 80%, 53%)
CMYK	cmyk(80.1%, 41.2%, 0%, 46.7%)
CIE-LAB	lab(33.45, 3.79, -36.18)
CIE-LCH	lch(33.45, 36.38, 275.98°)
OKLab	oklab(42.69% -0.0319 -0.1034)
OKLCH	oklch(42.69% 0.108 252.8)
XYZ	xyz(7.7629, 7.7470, 24.3740)
Luminance	0.0775 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5088 #88531B

analogous

#1B8788 #1B5088 #1D1B88

triadic

#1B5088 #881B50 #50881B

tetradic

#1B5088 #881B87 #88531B #1B881D

square

#1B5088 #881B87 #88531B #1B881D

split-complementary

#1B5088 #881D1B #87881B

monochromatic

#071422 #113255 #1B5088 #256EBB #448DDA

Accessibility & contrast

On white

8.24

#1B5088 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#1B5088 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5088

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5088	#FFFFFF	#000000	##FFFFFF
##1B5088	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35548A

Deuteranopia (green-blind)

#234A87

Tritanopia (blue-blind)

#005D65

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b5088;
/* rgb */ color: rgb(27, 80, 136);
/* oklch */ color: oklch(42.7% 0.108 252.8);

Tailwind

colors: {
  custom: {
    50: '#6980ab',
    500: '#1b5088',
    950: '#000000',
  },
}

SCSS

$custom: #1b5088;
$custom-light: #6980ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5088",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 136
  },
  "hsl": {
    "h": 210.826,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.42689,
    "c": 0.10817,
    "h": 252.8
  },
  "luminance": 0.07748
}

Semantic roles & 50–950 ramp

primary

#1B5088

secondary

#BB8144

accent

#963EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B5088

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

Preview Lab → · Contrast checker → · Palette generator →