#277AA1#277AA1

#277AA1 is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 54.8% C 0.098 H 233.3°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#277AA1
RGB	rgb(39, 122, 161)
HSL	hsl(199, 61%, 39%)
HSV	hsv(199, 76%, 63%)
CMYK	cmyk(75.8%, 24.2%, 0%, 36.9%)
CIE-LAB	lab(48.16, -11.08, -27.96)
CIE-LCH	lch(48.16, 30.08, 248.38°)
OKLab	oklab(54.82% -0.0586 -0.0787)
OKLCH	oklch(54.82% 0.098 233.3)
XYZ	xyz(14.2267, 16.9219, 36.2278)
Luminance	0.1692 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277AA1 #A14E27

analogous

#27A18B #277AA1 #273DA1

triadic

#277AA1 #A1277A #7AA127

tetradic

#277AA1 #8B27A1 #A14E27 #3DA127

square

#277AA1 #8B27A1 #A14E27 #3DA127

split-complementary

#277AA1 #A1273D #A18B27

monochromatic

#0F2F3E #1B5570 #277AA1 #379ECE #68B6DA

Accessibility & contrast

On white

4.79

#277AA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#277AA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277AA1

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277AA1	#FFFFFF	#000000	##FFFFFF
##277AA1	1.00	4.79	4.38	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6779A3

Deuteranopia (green-blind)

#566DA0

Tritanopia (blue-blind)

#008487

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #277aa1;
/* rgb */ color: rgb(39, 122, 161);
/* oklch */ color: oklch(54.8% 0.098 233.3);

Tailwind

colors: {
  custom: {
    50: '#73a0bd',
    500: '#277aa1',
    950: '#000000',
  },
}

SCSS

$custom: #277aa1;
$custom-light: #73a0bd;
$custom-dark: #000000;

JSON

{
  "hex": "#277aa1",
  "rgb": {
    "r": 39,
    "g": 122,
    "b": 161
  },
  "hsl": {
    "h": 199.18,
    "s": 61,
    "l": 39.216
  },
  "oklch": {
    "l": 0.54819,
    "c": 0.09813,
    "h": 233.3
  },
  "luminance": 0.16924
}

Semantic roles & 50–950 ramp

primary

#277AA1

secondary

#C08163

accent

#7744E4

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #277AA1

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

Preview Lab → · Contrast checker → · Palette generator →