#305A4B
Closest named color: Dark Green Blue (#1F6357). oklch(43.2% 0.054 168.7), rgb(48, 90, 75).
Aa
White text reads best on this color (7.80:1).
About this color
#305A4B is a dark, muted green. In OKLCH its lightness is 43%, its chroma 0.054 and its hue 169°. 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 7.80:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | muted (0.054) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.68:1 |
| White text | 7.80:1 |
Values
| HEX | #305A4B |
| RGB | rgb(48, 90, 75) |
| HSL | hsl(159, 30%, 27%) |
| OKLCH | oklch(43.2% 0.054 168.7) |
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 #305A4B | 7.80:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #305A4B | 2.68:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #305A4B text on white | 7.80:1 | AAA | Lc 87.0 | Fine for body text |
| #305A4B text on black | 2.68:1 | Fails | Lc -15.1 | 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
#CFDDD7
oklch(88.5% 0.017 168.4)
-
Step 300
300
#AEC8BD
oklch(81% 0.032 168.1)
-
Step 400
400
#82AB9B
oklch(70.7% 0.05 169)
-
Step 500
500
#619682
oklch(63% 0.064 168.5)
-
Step 600
600
#46816C
oklch(55.7% 0.071 168.6)
-
Step 700
700
#376D5A
oklch(49.2% 0.066 168.5)
-
Step 800
800 (this color)
#305A4B
oklch(43.2% 0.054 168.7)
-
Step 900
900
#2A493E
oklch(37.7% 0.042 169.4)
-
Step 950
950
#192B24
oklch(27.1% 0.027 167.9)
#305A4B 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) | #58554A | 0.055 |
| Deuteranopia (no green cones) | #51504C | 0.052 |
| Tritanopia (no blue cones) | #235A56 | 0.020 |
| Achromatopsia (no color) | #525252 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305A4B
#305A4B
oklch(43.2% 0.054 168.7)
- #674455
#674455
oklch(43.2% 0.054 349)
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 #305A4B, 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 Slate Gray #2F4F4F ΔE 0.039
- Pine #2B5D34 ΔE 0.041
- Dark Blue Green #005249 ΔE 0.044
- Deep Teal #00555A ΔE 0.045
- Spruce #0A5F38 ΔE 0.048
- Petrol #005F6A ΔE 0.051
- Dark Aqua #05696B ΔE 0.058
Use #305A4B 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.