#305C4E
Closest named color: Dark Green Blue (#1F6357). oklch(43.8% 0.055 171), rgb(48, 92, 78).
Aa
White text reads best on this color (7.59:1).
About this color
#305C4E is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.055 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.023 away. White text reads best on it, at 7.59:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.76:1 |
| White text | 7.59:1 |
Values
| HEX | #305C4E |
| RGB | rgb(48, 92, 78) |
| HSL | hsl(161, 31%, 27%) |
| OKLCH | oklch(43.8% 0.055 171) |
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 #305C4E | 7.59:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #305C4E | 2.76:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #305C4E text on white | 7.59:1 | AAA | Lc 86.3 | Fine for body text |
| #305C4E text on black | 2.76:1 | Fails | Lc -15.8 | 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 800.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CEDDD7
oklch(88.5% 0.018 170)
-
Step 300
300
#ADC8BE
oklch(81% 0.032 171.1)
-
Step 400
400
#81AB9C
oklch(70.6% 0.05 170.9)
-
Step 500
500
#5F9784
oklch(63.2% 0.066 170.6)
-
Step 600
600
#44816E
oklch(55.6% 0.071 171.3)
-
Step 700
700
#356D5C
oklch(49.1% 0.066 171.4)
-
Step 800
800 (this color)
#305C4E
oklch(43.8% 0.055 171)
-
Step 900
900
#29493E
oklch(37.7% 0.043 170)
-
Step 950
950
#182B25
oklch(27% 0.027 172.2)
#305C4E 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) | #5A574D | 0.057 |
| Deuteranopia (no green cones) | #53524F | 0.054 |
| Tritanopia (no blue cones) | #215D58 | 0.018 |
| Achromatopsia (no color) | #545454 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305C4E
#305C4E
oklch(43.8% 0.055 171)
- #6A4656
#6A4656
oklch(44% 0.054 351.3)
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 #305C4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.023
- Pine #2B5D34 ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.044
- Deep Teal #00555A ΔE 0.046
- Petrol #005F6A ΔE 0.047
- Spruce #0A5F38 ΔE 0.049
- Dark Blue Green #005249 ΔE 0.049
- Dark Aqua #05696B ΔE 0.052
Use #305C4E 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.