#1B657B#1B657B

#1B657B is a mid, moderate cyan. Relative luminance 0.110; OKLCH L 47.3% C 0.078 H 222.3°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#1B657B
RGB	rgb(27, 101, 123)
HSL	hsl(194, 64%, 29%)
HSV	hsv(194, 78%, 48%)
CMYK	cmyk(78%, 17.9%, 0%, 51.8%)
CIE-LAB	lab(39.53, -14.19, -18.69)
CIE-LCH	lch(39.53, 23.47, 232.79°)
OKLab	oklab(47.29% -0.0574 -0.0523)
OKLCH	oklch(47.29% 0.078 222.3)
XYZ	xyz(8.6793, 10.9694, 20.3949)
Luminance	0.1097 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B657B #7B311B

analogous

#1B7B61 #1B657B #1B357B

triadic

#1B657B #7B1B65 #657B1B

tetradic

#1B657B #611B7B #7B311B #357B1B

square

#1B657B #611B7B #7B311B #357B1B

split-complementary

#1B657B #7B1B35 #7B611B

monochromatic

#061519 #103C49 #1B657B #268EAD #3CB1D4

Accessibility & contrast

On white

6.57

#1B657B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#1B657B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B657B

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B657B	#FFFFFF	#000000	##FFFFFF
##1B657B	1.00	6.57	3.19	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58627C

Deuteranopia (green-blind)

#4B597B

Tritanopia (blue-blind)

#006C6C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1b657b;
/* rgb */ color: rgb(27, 101, 123);
/* oklch */ color: oklch(47.3% 0.078 222.3);

Tailwind

colors: {
  custom: {
    50: '#6791a1',
    500: '#1b657b',
    950: '#000000',
  },
}

SCSS

$custom: #1b657b;
$custom-light: #6791a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b657b",
  "rgb": {
    "r": 27,
    "g": 101,
    "b": 123
  },
  "hsl": {
    "h": 193.75,
    "s": 64,
    "l": 29.412
  },
  "oklch": {
    "l": 0.47288,
    "c": 0.07769,
    "h": 222.3
  },
  "luminance": 0.1097
}

Semantic roles & 50–950 ramp

primary

#1B657B

secondary

#AF5C43

accent

#6741E7

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #1B657B

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

Preview Lab → · Contrast checker → · Palette generator →