#1B5DA0#1B5DA0

#1B5DA0 is a mid, vivid cyan. Relative luminance 0.106; OKLCH L 47.4% C 0.126 H 252.6°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#1B5DA0
RGB	rgb(27, 93, 160)
HSL	hsl(210, 71%, 37%)
HSV	hsv(210, 83%, 63%)
CMYK	cmyk(83.1%, 41.9%, 0%, 37.3%)
CIE-LAB	lab(38.90, 4.88, -42.01)
CIE-LCH	lch(38.90, 42.29, 276.62°)
OKLab	oklab(47.41% -0.0376 -0.1202)
OKLCH	oklch(47.41% 0.126 252.6)
XYZ	xyz(10.7091, 10.5985, 34.7322)
Luminance	0.1060 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5DA0 #A05E1B

analogous

#1BA0A0 #1B5DA0 #1C1BA0

triadic

#1B5DA0 #A01B5D #5DA01B

tetradic

#1B5DA0 #A01BA0 #A05E1B #1BA01C

square

#1B5DA0 #A01BA0 #A05E1B #1BA01C

split-complementary

#1B5DA0 #A01C1B #A0A01B

monochromatic

#092037 #123F6C #1B5DA0 #247BD4 #539AE2

Accessibility & contrast

On white

6.73

#1B5DA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#1B5DA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5DA0

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5DA0	#FFFFFF	#000000	##FFFFFF
##1B5DA0	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C62A3

Deuteranopia (green-blind)

#25569F

Tritanopia (blue-blind)

#006D76

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1b5da0;
/* rgb */ color: rgb(27, 93, 160);
/* oklch */ color: oklch(47.4% 0.126 252.6);

Tailwind

colors: {
  custom: {
    50: '#6f8abc',
    500: '#1b5da0',
    950: '#000000',
  },
}

SCSS

$custom: #1b5da0;
$custom-light: #6f8abc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5da0",
  "rgb": {
    "r": 27,
    "g": 93,
    "b": 160
  },
  "hsl": {
    "h": 210.226,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.47407,
    "c": 0.12596,
    "h": 252.6
  },
  "luminance": 0.106
}

Semantic roles & 50–950 ramp

primary

#1B5DA0

secondary

#C58C52

accent

#953AEE

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1B5DA0

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

Preview Lab → · Contrast checker → · Palette generator →