#339378
Closest named color: Ocean Green (#3D9973). oklch(60% 0.099 170.9), rgb(51, 147, 120).
Aa
Black text reads best on this color (5.58:1).
About this color
#339378 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.099 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.023 away. Black text reads best on it, at 5.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 5.58:1 |
| White text | 3.75:1 |
Values
| HEX | #339378 |
| RGB | rgb(51, 147, 120) |
| HSL | hsl(163, 48%, 39%) |
| OKLCH | oklch(60% 0.099 170.9) |
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 #339378 | 3.75:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #339378 | 5.58:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #339378 text on white | 3.75:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #339378 text on black | 5.58:1 | AA | Lc -36.8 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C9DFD7
oklch(88.5% 0.026 171.9)
-
Step 300
300
#A2CBBC
oklch(80.8% 0.048 170.8)
-
Step 400
400
#6DB19A
oklch(70.8% 0.078 170.5)
-
Step 500
500 (this color)
#339378
oklch(60% 0.099 170.9)
-
Step 600
600
#09876B
oklch(55.6% 0.107 171.2)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#035D49
oklch(42.6% 0.082 171.4)
-
Step 900
900
#134C3D
oklch(37.6% 0.064 171.6)
-
Step 950
950
#0E2D24
oklch(27.1% 0.041 171.3)
#339378 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) | #8F8977 | 0.102 |
| Deuteranopia (no green cones) | #81807A | 0.096 |
| Tritanopia (no blue cones) | #00948B | 0.030 |
| Achromatopsia (no color) | #848484 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #339378
#339378
oklch(60% 0.099 170.9)
- #AD6787
#AD6787
oklch(60.1% 0.098 351.6)
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 #339378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.023
- Viridian #1E9167 ΔE 0.029
- Dusty Teal #4C9085 ΔE 0.032
- Blue Green #0F9B8E ΔE 0.033
- Persian Green #2A9D8F ΔE 0.037
- Sea #3C9992 ΔE 0.040
- Slate Green #658D6D ΔE 0.044
- Teal Green #0A9396 ΔE 0.046
Use #339378 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.