#309177
Closest named color: Viridian (#1E9167). oklch(59.3% 0.098 171.6), rgb(48, 145, 119).
Aa
Black text reads best on this color (5.44:1).
About this color
#309177 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.098 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.027 away. Black text reads best on it, at 5.44:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #309177 |
| RGB | rgb(48, 145, 119) |
| HSL | hsl(164, 50%, 38%) |
| OKLCH | oklch(59.3% 0.098 171.6) |
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 #309177 | 3.85:1 | AA large text | Lc -71.3 | Content text, not long reading |
| Black text on #309177 | 5.44:1 | AA | Lc 38.3 | Non-text elements, placeholder text |
| #309177 text on white | 3.85:1 | AA large text | Lc 65.8 | Content text, not long reading |
| #309177 text on black | 5.44:1 | AA | Lc -35.9 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE9
oklch(93.7% 0.013 172.4)
-
Step 200
200
#CADFD7
oklch(88.6% 0.025 170.9)
-
Step 300
300
#A5CABD
oklch(80.8% 0.043 171.8)
-
Step 400
400
#72AF9B
oklch(70.6% 0.07 171.6)
-
Step 500
500
#479B83
oklch(63% 0.09 172.1)
-
Step 600
600 (this color)
#309177
oklch(59.3% 0.098 171.6)
-
Step 700
700
#0F715A
oklch(49.1% 0.092 171.5)
-
Step 800
800
#135C4A
oklch(42.7% 0.075 172)
-
Step 900
900
#1A4C3E
oklch(37.8% 0.059 171.6)
-
Step 950
950
#112C24
oklch(26.9% 0.037 171.8)
#309177 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) | #8D8876 | 0.102 |
| Deuteranopia (no green cones) | #7F7E79 | 0.097 |
| Tritanopia (no blue cones) | #009289 | 0.028 |
| Achromatopsia (no color) | #828282 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #309177
#309177
oklch(59.3% 0.098 171.6)
- #AB6585
#AB6585
oklch(59.4% 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 #309177, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.027
- Ocean Green #3D9973 ΔE 0.029
- Dusty Teal #4C9085 ΔE 0.033
- Blue Green #0F9B8E ΔE 0.037
- Persian Green #2A9D8F ΔE 0.042
- Dark Cyan #008B8B ΔE 0.043
- Sea #3C9992 ΔE 0.044
- Sea Green #2E8B57 ΔE 0.045
Use #309177 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.