#277A9D#277A9D

#277A9D is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.6% C 0.094 H 230.5°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#277A9D
RGB	rgb(39, 122, 157)
HSL	hsl(198, 60%, 38%)
HSV	hsv(198, 75%, 62%)
CMYK	cmyk(75.2%, 22.3%, 0%, 38.4%)
CIE-LAB	lab(47.99, -12.50, -25.90)
CIE-LCH	lch(47.99, 28.76, 244.23°)
OKLab	oklab(54.62% -0.0601 -0.0728)
OKLCH	oklch(54.62% 0.094 230.5)
XYZ	xyz(13.8796, 16.7831, 34.3997)
Luminance	0.1678 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277A9D #9D4A27

analogous

#279D85 #277A9D #273F9D

triadic

#277A9D #9D277A #7A9D27

tetradic

#277A9D #85279D #9D4A27 #3F9D27

square

#277A9D #85279D #9D4A27 #3F9D27

split-complementary

#277A9D #9D273F #9D8527

monochromatic

#0F2E3B #1B546C #277A9D #35A0CD #66B7D9

Accessibility & contrast

On white

4.82

#277A9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#277A9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277A9D

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277A9D	#FFFFFF	#000000	##FFFFFF
##277A9D	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68789F

Deuteranopia (green-blind)

#586D9C

Tritanopia (blue-blind)

#008486

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #277a9d;
/* rgb */ color: rgb(39, 122, 157);
/* oklch */ color: oklch(54.6% 0.094 230.5);

Tailwind

colors: {
  custom: {
    50: '#72a0ba',
    500: '#277a9d',
    950: '#000000',
  },
}

SCSS

$custom: #277a9d;
$custom-light: #72a0ba;
$custom-dark: #000000;

JSON

{
  "hex": "#277a9d",
  "rgb": {
    "r": 39,
    "g": 122,
    "b": 157
  },
  "hsl": {
    "h": 197.797,
    "s": 60.204,
    "l": 38.431
  },
  "oklch": {
    "l": 0.5462,
    "c": 0.09435,
    "h": 230.5
  },
  "luminance": 0.16785
}

Semantic roles & 50–950 ramp

primary

#277A9D

secondary

#BF7D61

accent

#7444E3

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #277A9D

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

Preview Lab → · Contrast checker → · Palette generator →