#3C879E
Closest named color: Teal Blue (#01889F). oklch(58.6% 0.081 221), rgb(60, 135, 158).
Aa
Black text reads best on this color (5.15:1).
About this color
#3C879E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.081 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.024 away. Black text reads best on it, at 5.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #3C879E |
| RGB | rgb(60, 135, 158) |
| HSL | hsl(194, 45%, 43%) |
| OKLCH | oklch(58.6% 0.081 221) |
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 #3C879E | 4.07:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #3C879E | 5.15:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #3C879E text on white | 4.07:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #3C879E text on black | 5.15:1 | AA | Lc -33.9 | 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 600.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3ECEF
oklch(93.7% 0.01 219.6)
-
Step 200
200
#CBDDE3
oklch(88.6% 0.021 219.7)
-
Step 300
300
#A8C7D1
oklch(81% 0.036 219.3)
-
Step 400
400
#77A9BA
oklch(70.6% 0.058 221.1)
-
Step 500
500
#5194A9
oklch(63% 0.075 220.5)
-
Step 600
600 (this color)
#3C879E
oklch(58.6% 0.081 221)
-
Step 700
700
#246A7F
oklch(49% 0.076 221.6)
-
Step 800
800
#205767
oklch(42.8% 0.063 220.4)
-
Step 900
900
#204854
oklch(37.8% 0.049 220.1)
-
Step 950
950
#142A31
oklch(27% 0.031 220.6)
#3C879E 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) | #79849F | 0.067 |
| Deuteranopia (no green cones) | #6B799E | 0.061 |
| Tritanopia (no blue cones) | #008E8E | 0.045 |
| Achromatopsia (no color) | #7E7E7E | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C879E
#3C879E
oklch(58.6% 0.081 221)
- #A56B56
#A56B56
oklch(58.5% 0.081 40.7)
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 #3C879E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.024
- Blue NCS #118AB2 ΔE 0.033
- Cerulean #457B9D ΔE 0.035
- Stormy Blue #507B9C ΔE 0.037
- Off Blue #5684AE ΔE 0.039
- Dusty Blue #5A86AD ΔE 0.039
- Steel Blue #4682B4 ΔE 0.043
- Dark Cyan #008B8B ΔE 0.045
Use #3C879E 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.