#306A55
Closest named color: Dark Green Blue (#1F6357). oklch(47.9% 0.07 167.2), rgb(48, 106, 85).
Aa
White text reads best on this color (6.32:1).
About this color
#306A55 is a medium-dark, moderately saturated green. In OKLCH its lightness is 48%, its chroma 0.070 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.029 away. White text reads best on it, at 6.32:1.
| Hue family | Greens |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.31:1 |
| White text | 6.32:1 |
Values
| HEX | #306A55 |
| RGB | rgb(48, 106, 85) |
| HSL | hsl(158, 38%, 30%) |
| OKLCH | oklch(47.9% 0.07 167.2) |
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 #306A55 | 6.32:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #306A55 | 3.31:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #306A55 text on white | 6.32:1 | AA | Lc 81.3 | Fine for body text |
| #306A55 text on black | 3.31:1 | AA large text | Lc -20.6 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CEDDD6
oklch(88.4% 0.019 166.3)
-
Step 300
300
#ADC8BC
oklch(80.9% 0.034 166.9)
-
Step 400
400
#80AC9A
oklch(70.7% 0.054 167.7)
-
Step 500
500
#5E9781
oklch(63% 0.069 167.7)
-
Step 600
600
#42826A
oklch(55.7% 0.077 167)
-
Step 700
700 (this color)
#306A55
oklch(47.9% 0.07 167.2)
-
Step 800
800
#2C5948
oklch(42.6% 0.058 167)
-
Step 900
900
#28493D
oklch(37.6% 0.044 168.6)
-
Step 950
950
#182B23
oklch(27% 0.029 165.8)
#306A55 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) | #686354 | 0.072 |
| Deuteranopia (no green cones) | #5F5D56 | 0.068 |
| Tritanopia (no blue cones) | #196A64 | 0.026 |
| Achromatopsia (no color) | #606060 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306A55
#306A55
oklch(47.9% 0.07 167.2)
- #7B4D65
#7B4D65
oklch(48% 0.07 347.5)
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 #306A55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.029
- Dark Aqua #05696B ΔE 0.040
- Dark Aquamarine #017371 ΔE 0.044
- Deep Turquoise #017374 ΔE 0.048
- Pine #2B5D34 ΔE 0.056
- Spruce #0A5F38 ΔE 0.060
- Dark Olive Green #556B2F ΔE 0.061
- Bluegreen #017A79 ΔE 0.061
Use #306A55 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.