#319E9A
Closest named color: Sea (#3C9992). oklch(63.8% 0.096 191.5), rgb(49, 158, 154).
Aa
Black text reads best on this color (6.48:1).
About this color
#319E9A is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.096 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.016 away. Black text reads best on it, at 6.48:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.48:1 |
| White text | 3.23:1 |
Values
| HEX | #319E9A |
| RGB | rgb(49, 158, 154) |
| HSL | hsl(178, 53%, 41%) |
| OKLCH | oklch(63.8% 0.096 191.5) |
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 #319E9A | 3.23:1 | AA large text | Lc -64.7 | Content text, not long reading |
| Black text on #319E9A | 6.48:1 | AA | Lc 44.8 | Non-text elements, placeholder text |
| #319E9A text on white | 3.23:1 | AA large text | Lc 59.3 | Large or bold text, headings |
| #319E9A text on black | 6.48:1 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E0EDEC
oklch(93.6% 0.014 191.4)
-
Step 200
200
#C7DFDD
oklch(88.5% 0.026 190.6)
-
Step 300
300
#9ECBC8
oklch(80.9% 0.047 191.2)
-
Step 400
400
#65B0AC
oklch(70.8% 0.075 191.2)
-
Step 500
500 (this color)
#319E9A
oklch(63.8% 0.096 191.5)
-
Step 600
600
#008581
oklch(55.7% 0.096 191.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#005B59
oklch(42.6% 0.073 192.2)
-
Step 900
900
#064C4A
oklch(37.7% 0.063 191.7)
-
Step 950
950
#092D2B
oklch(27.1% 0.04 189.8)
#319E9A 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) | #95969A | 0.102 |
| Deuteranopia (no green cones) | #848A9B | 0.095 |
| Tritanopia (no blue cones) | #00A29C | 0.016 |
| Achromatopsia (no color) | #8F8F8F | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #319E9A
#319E9A
oklch(63.8% 0.096 191.5)
- #BE727D
#BE727D
oklch(63.7% 0.097 10.8)
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 #319E9A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.016
- Persian Green #2A9D8F ΔE 0.017
- Blue Green #0F9B8E ΔE 0.024
- Dull Teal #5F9E8F ΔE 0.036
- Grey Teal #5E9B8A ΔE 0.037
- Teal Green #0A9396 ΔE 0.038
- Cadet Blue #5F9EA0 ΔE 0.038
- Dusty Teal #4C9085 ΔE 0.043
Use #319E9A 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.