#1B61B3#1B61B3

#1B61B3 is a mid, vivid cyan. Relative luminance 0.120; OKLCH L 49.6% C 0.147 H 255.5°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#1B61B3
RGB	rgb(27, 97, 179)
HSL	hsl(212, 74%, 40%)
HSV	hsv(212, 85%, 70%)
CMYK	cmyk(84.9%, 45.8%, 0%, 29.8%)
CIE-LAB	lab(41.27, 9.82, -49.44)
CIE-LCH	lch(41.27, 50.40, 281.24°)
OKLab	oklab(49.64% -0.0368 -0.142)
OKLCH	oklch(49.64% 0.147 255.5)
XYZ	xyz(12.8603, 12.0355, 44.2844)
Luminance	0.1204 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B61B3 #B36D1B

analogous

#1BADB3 #1B61B3 #211BB3

triadic

#1B61B3 #B31B61 #61B31B

tetradic

#1B61B3 #B31BAD #B36D1B #1BB321

square

#1B61B3 #B31BAD #B36D1B #1BB321

split-complementary

#1B61B3 #B3211B #ADB31B

monochromatic

#0B2749 #13447E #1B61B3 #2C7FDF #619FE7

Accessibility & contrast

On white

6.16

#1B61B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#1B61B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B61B3

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B61B3	#FFFFFF	#000000	##FFFFFF
##1B61B3	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3569B6

Deuteranopia (green-blind)

#0D5BB1

Tritanopia (blue-blind)

#007581

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #1b61b3;
/* rgb */ color: rgb(27, 97, 179);
/* oklch */ color: oklch(49.6% 0.147 255.5);

Tailwind

colors: {
  custom: {
    50: '#738dca',
    500: '#1b61b3',
    950: '#000000',
  },
}

SCSS

$custom: #1b61b3;
$custom-light: #738dca;
$custom-dark: #000000;

JSON

{
  "hex": "#1b61b3",
  "rgb": {
    "r": 27,
    "g": 97,
    "b": 179
  },
  "hsl": {
    "h": 212.368,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49635,
    "c": 0.14666,
    "h": 255.5
  },
  "luminance": 0.12037
}

Semantic roles & 50–950 ramp

primary

#1B61B3

secondary

#CC995E

accent

#9B37F0

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #1B61B3

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

Preview Lab → · Contrast checker → · Palette generator →