#306F54
Closest named color: Dark Aquamarine (#017371). oklch(49.2% 0.079 163), rgb(48, 111, 84).
Aa
White text reads best on this color (5.95:1).
About this color
#306F54 is a medium-dark, moderately saturated green. In OKLCH its lightness is 49%, its chroma 0.079 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.044 away. White text reads best on it, at 5.95:1.
| Hue family | Greens |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.52:1 |
| White text | 5.95:1 |
Values
| HEX | #306F54 |
| RGB | rgb(48, 111, 84) |
| HSL | hsl(154, 40%, 31%) |
| OKLCH | oklch(49.2% 0.079 163) |
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 #306F54 | 5.95:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #306F54 | 3.52:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #306F54 text on white | 5.95:1 | AA | Lc 79.6 | Fine for body text |
| #306F54 text on black | 3.52:1 | AA large text | Lc -22.2 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CDDED5
oklch(88.5% 0.022 163)
-
Step 300
300
#ABC9BA
oklch(80.9% 0.038 163.8)
-
Step 400
400
#7EAD96
oklch(70.7% 0.061 163.2)
-
Step 500
500
#5B997C
oklch(63.2% 0.079 162.8)
-
Step 600
600
#3E8365
oklch(55.6% 0.085 163.1)
-
Step 700
700 (this color)
#306F54
oklch(49.2% 0.079 163)
-
Step 800
800
#295A45
oklch(42.7% 0.064 163.5)
-
Step 900
900
#264A3A
oklch(37.7% 0.05 163.5)
-
Step 950
950
#172B22
oklch(26.9% 0.031 164)
#306F54 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) | #6D6853 | 0.076 |
| Deuteranopia (no green cones) | #646156 | 0.074 |
| Tritanopia (no blue cones) | #186F67 | 0.031 |
| Achromatopsia (no color) | #646464 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306F54
#306F54
oklch(49.2% 0.079 163)
- #804E6D
#804E6D
oklch(49.1% 0.08 342.6)
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 #306F54, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.044
- Dark Green Blue #1F6357 ΔE 0.044
- Deep Turquoise #017374 ΔE 0.048
- Dark Aqua #05696B ΔE 0.050
- Dark Olive Green #556B2F ΔE 0.054
- Bluegreen #017A79 ΔE 0.056
- Dark Moss Green #606C38 ΔE 0.059
- Camo Green #526525 ΔE 0.061
Use #306F54 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.