#277EA5#277EA5

#277EA5 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.0% C 0.100 H 232.3°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#277EA5
RGB	rgb(39, 126, 165)
HSL	hsl(199, 62%, 40%)
HSV	hsv(199, 76%, 65%)
CMYK	cmyk(76.4%, 23.6%, 0%, 35.3%)
CIE-LAB	lab(49.58, -11.95, -28.09)
CIE-LCH	lch(49.58, 30.53, 246.96°)
OKLab	oklab(56.01% -0.0611 -0.0791)
OKLCH	oklch(56.01% 0.1 232.3)
XYZ	xyz(15.0864, 18.0679, 38.2824)
Luminance	0.1807 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277EA5 #A54E27

analogous

#27A58D #277EA5 #273FA5

triadic

#277EA5 #A5277E #7EA527

tetradic

#277EA5 #8D27A5 #A54E27 #3FA527

square

#277EA5 #8D27A5 #A54E27 #3FA527

split-complementary

#277EA5 #A5273F #A58D27

monochromatic

#103242 #1B5874 #277EA5 #39A1D0 #6AB9DC

Accessibility & contrast

On white

4.55

#277EA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#277EA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277EA5

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277EA5	#FFFFFF	#000000	##000000
##277EA5	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA7

Deuteranopia (green-blind)

#5A71A4

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #277ea5;
/* rgb */ color: rgb(39, 126, 165);
/* oklch */ color: oklch(56.0% 0.100 232.3);

Tailwind

colors: {
  custom: {
    50: '#74a3c0',
    500: '#277ea5',
    950: '#000000',
  },
}

SCSS

$custom: #277ea5;
$custom-light: #74a3c0;
$custom-dark: #000000;

JSON

{
  "hex": "#277ea5",
  "rgb": {
    "r": 39,
    "g": 126,
    "b": 165
  },
  "hsl": {
    "h": 198.571,
    "s": 61.765,
    "l": 40
  },
  "oklch": {
    "l": 0.56007,
    "c": 0.09994,
    "h": 232.3
  },
  "luminance": 0.1807
}

Semantic roles & 50–950 ramp

primary

#277EA5

secondary

#C28266

accent

#7543E5

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #277EA5

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

Preview Lab → · Contrast checker → · Palette generator →