#305D53
Closest named color: Dark Green Blue (#1F6357). oklch(44.3% 0.053 177.6), rgb(48, 93, 83).
Aa
White text reads best on this color (7.45:1).
About this color
#305D53 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.053 and its hue 178°. 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 7.45:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.81:1 |
| White text | 7.45:1 |
Values
| HEX | #305D53 |
| RGB | rgb(48, 93, 83) |
| HSL | hsl(167, 32%, 28%) |
| OKLCH | oklch(44.3% 0.053 177.6) |
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 #305D53 | 7.45:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #305D53 | 2.81:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #305D53 text on white | 7.45:1 | AAA | Lc 85.8 | Fine for body text |
| #305D53 text on black | 2.81:1 | Fails | Lc -16.2 | 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 800.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDD9
oklch(88.5% 0.017 178.2)
-
Step 300
300
#ACC8C0
oklch(81% 0.032 176.4)
-
Step 400
400
#80ABA0
oklch(70.7% 0.049 177.3)
-
Step 500
500
#5E9689
oklch(63% 0.063 177.8)
-
Step 600
600
#428173
oklch(55.7% 0.069 177.4)
-
Step 700
700
#336D60
oklch(49.2% 0.065 176.9)
-
Step 800
800 (this color)
#305D53
oklch(44.3% 0.053 177.6)
-
Step 900
900
#284941
oklch(37.7% 0.041 176.6)
-
Step 950
950
#182B26
oklch(27.1% 0.027 175.7)
#305D53 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) | #5A5853 | 0.056 |
| Deuteranopia (no green cones) | #525354 | 0.052 |
| Tritanopia (no blue cones) | #1E5E5A | 0.016 |
| Achromatopsia (no color) | #555555 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305D53
#305D53
oklch(44.3% 0.053 177.6)
- #6B4753
#6B4753
oklch(44.2% 0.052 357.8)
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 #305D53, 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
- Petrol #005F6A ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.045
- Deep Teal #00555A ΔE 0.045
- Dark Aqua #05696B ΔE 0.046
- Pine #2B5D34 ΔE 0.049
- Dark Blue Green #005249 ΔE 0.052
- Spruce #0A5F38 ΔE 0.055
Use #305D53 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.