#305D4F
Closest named color: Dark Green Blue (#1F6357). oklch(44.2% 0.055 171.4), rgb(48, 93, 79).
Aa
White text reads best on this color (7.48:1).
About this color
#305D4F 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 0.021 away. White text reads best on it, at 7.48:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.80:1 |
| White text | 7.48:1 |
Values
| HEX | #305D4F |
| RGB | rgb(48, 93, 79) |
| HSL | hsl(161, 32%, 28%) |
| OKLCH | oklch(44.2% 0.055 171.4) |
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 #305D4F | 7.48:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #305D4F | 2.80:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #305D4F text on white | 7.48:1 | AAA | Lc 85.9 | Fine for body text |
| #305D4F text on black | 2.80:1 | Fails | Lc -16.1 | 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
#80AC9C
oklch(70.8% 0.053 170.4)
-
Step 500
500
#5E9784
oklch(63.1% 0.067 170.9)
-
Step 600
600
#43816E
oklch(55.6% 0.072 171.5)
-
Step 700
700
#346D5C
oklch(49.1% 0.067 171.7)
-
Step 800
800 (this color)
#305D4F
oklch(44.2% 0.055 171.4)
-
Step 900
900
#28493F
oklch(37.7% 0.043 172.5)
-
Step 950
950
#182B25
oklch(27% 0.027 172.2)
#305D4F 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) | #5B584E | 0.058 |
| Deuteranopia (no green cones) | #535350 | 0.054 |
| Tritanopia (no blue cones) | #205E59 | 0.018 |
| Achromatopsia (no color) | #555555 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305D4F
#305D4F
oklch(44.2% 0.055 171.4)
- #6B4656
#6B4656
oklch(44.1% 0.056 352.1)
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 #305D4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.021
- Pine #2B5D34 ΔE 0.043
- Petrol #005F6A ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.047
- Deep Teal #00555A ΔE 0.048
- Spruce #0A5F38 ΔE 0.049
- Dark Aqua #05696B ΔE 0.049
- Dark Blue Green #005249 ΔE 0.052
Use #305D4F 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.