#279BB8
Closest named color: Blue NCS (#118AB2). oklch(64% 0.106 219.2), rgb(39, 155, 184).
Aa
Black text reads best on this color (6.46:1).
About this color
#279BB8 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.106 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.051 away. Black text reads best on it, at 6.46:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 6.46:1 |
| White text | 3.24:1 |
Values
| HEX | #279BB8 |
| RGB | rgb(39, 155, 184) |
| HSL | hsl(192, 65%, 44%) |
| OKLCH | oklch(64% 0.106 219.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #279BB8 | 3.24:1 | AA large text | Lc -64.8 | Content text, not long reading |
| Black text on #279BB8 | 6.46:1 | AA | Lc 44.7 | Non-text elements, placeholder text |
| #279BB8 text on white | 3.24:1 | AA large text | Lc 59.4 | Large or bold text, headings |
| #279BB8 text on black | 6.46:1 | AA | Lc -42.4 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#DFECF1
oklch(93.5% 0.015 222.7)
-
Step 200
200
#C5DEE6
oklch(88.5% 0.029 219)
-
Step 300
300
#9CC9D8
oklch(80.9% 0.052 220.3)
-
Step 400
400
#60ADC4
oklch(70.7% 0.083 219.4)
-
Step 500
500 (this color)
#279BB8
oklch(64% 0.106 219.2)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#062B35
oklch(26.9% 0.044 220.1)
#279BB8 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #8997BA | 0.089 |
| Deuteranopia (no green cones) | #7689B8 | 0.079 |
| Tritanopia (no blue cones) | #00A5A4 | 0.050 |
| Achromatopsia (no color) | #8F8F8F | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #279BB8
#279BB8
oklch(64% 0.106 219.2)
- #C3755A
#C3755A
oklch(64.1% 0.106 39.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #279BB8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.051
- Cadet Blue #5F9EA0 ΔE 0.054
- Teal Green #0A9396 ΔE 0.055
- Sea #3C9992 ΔE 0.056
- Turquoise Blue #06B1C4 ΔE 0.061
- Faded Blue #658CBB ΔE 0.061
- Dusty Blue #5A86AD ΔE 0.063
- Teal Blue #01889F ΔE 0.064
Use #279BB8 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.