#01966B
Closest named color: Viridian (#1E9167). oklch(59.6% 0.126 164.4), rgb(1, 150, 107).
Aa
Black text reads best on this color (5.57:1).
About this color
#01966B is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.126 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.014 away. Black text reads best on it, at 5.57:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.57:1 |
| White text | 3.76:1 |
Values
| HEX | #01966B |
| RGB | rgb(1, 150, 107) |
| HSL | hsl(163, 99%, 30%) |
| OKLCH | oklch(59.6% 0.126 164.4) |
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 #01966B | 3.76:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #01966B | 5.57:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #01966B text on white | 3.76:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #01966B text on black | 5.57:1 | AA | Lc -37.1 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E0EEE7
oklch(93.7% 0.018 164.6)
-
Step 200
200
#C5E1D3
oklch(88.5% 0.035 164.1)
-
Step 300
300
#9CCEB6
oklch(81% 0.062 163.9)
-
Step 400
400
#60B490
oklch(70.7% 0.099 164.1)
-
Step 500
500 (this color)
#01966B
oklch(59.6% 0.126 164.4)
-
Step 600
600
#008861
oklch(55.5% 0.117 164.6)
-
Step 700
700
#007351
oklch(49.2% 0.104 164.3)
-
Step 800
800
#005E42
oklch(42.7% 0.09 164.7)
-
Step 900
900
#004E36
oklch(37.5% 0.079 164.5)
-
Step 950
950
#062E20
oklch(26.9% 0.051 165.1)
#01966B 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) | #938A69 | 0.124 |
| Deuteranopia (no green cones) | #847F6E | 0.120 |
| Tritanopia (no blue cones) | #00968A | 0.047 |
| Achromatopsia (no color) | #838383 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01966B
#01966B
oklch(59.6% 0.126 164.4)
- #B25E91
#B25E91
oklch(59.6% 0.125 344.3)
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 #01966B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.014
- Ocean Green #3D9973 ΔE 0.030
- Sea Green #2E8B57 ΔE 0.035
- Light Forest Green #4F9153 ΔE 0.042
- Blue Green #0F9B8E ΔE 0.051
- Jade #1FA774 ΔE 0.052
- Fern Green #548D44 ΔE 0.055
- Persian Green #2A9D8F ΔE 0.056
Use #01966B 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.