#019978
Closest named color: Ocean Green (#3D9973). oklch(60.8% 0.12 170.4), rgb(1, 153, 120).
Aa
Black text reads best on this color (5.82:1).
About this color
#019978 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.120 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.022 away. Black text reads best on it, at 5.82:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 5.82:1 |
| White text | 3.60:1 |
Values
| HEX | #019978 |
| RGB | rgb(1, 153, 120) |
| HSL | hsl(167, 99%, 30%) |
| OKLCH | oklch(60.8% 0.12 170.4) |
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 #019978 | 3.60:1 | AA large text | Lc -68.5 | Content text, not long reading |
| Black text on #019978 | 5.82:1 | AA | Lc 41.1 | Non-text elements, placeholder text |
| #019978 text on white | 3.60:1 | AA large text | Lc 63.0 | Content text, not long reading |
| #019978 text on black | 5.82:1 | AA | Lc -38.7 | 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
#DFEEE8
oklch(93.6% 0.018 170.1)
-
Step 200
200
#C5E0D6
oklch(88.4% 0.032 171.3)
-
Step 300
300
#9BCDBB
oklch(80.8% 0.058 170.7)
-
Step 400
400
#5EB498
oklch(70.8% 0.094 170.1)
-
Step 500
500 (this color)
#019978
oklch(60.8% 0.12 170.4)
-
Step 600
600
#00876A
oklch(55.5% 0.109 170.8)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D48
oklch(42.6% 0.084 170.6)
-
Step 900
900
#004E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#042E23
oklch(27% 0.049 170.9)
#019978 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) | #948E76 | 0.121 |
| Deuteranopia (no green cones) | #84827A | 0.117 |
| Tritanopia (no blue cones) | #009A90 | 0.036 |
| Achromatopsia (no color) | #878787 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #019978
#019978
oklch(60.8% 0.12 170.4)
- #B7628C
#B7628C
oklch(60.7% 0.12 350.3)
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 #019978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.022
- Viridian #1E9167 ΔE 0.028
- Blue Green #0F9B8E ΔE 0.033
- Persian Green #2A9D8F ΔE 0.038
- Jade #1FA774 ΔE 0.046
- Sea #3C9992 ΔE 0.049
- Sea Green #2E8B57 ΔE 0.051
- Dusty Teal #4C9085 ΔE 0.052
Use #019978 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.