#305A64
Closest named color: Petrol (#005F6A). oklch(44.1% 0.05 214.9), rgb(48, 90, 100).
Aa
White text reads best on this color (7.57:1).
About this color
#305A64 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.050 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.028 away. White text reads best on it, at 7.57:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.77:1 |
| White text | 7.57:1 |
Values
| HEX | #305A64 |
| RGB | rgb(48, 90, 100) |
| HSL | hsl(192, 35%, 29%) |
| OKLCH | oklch(44.1% 0.05 214.9) |
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 #305A64 | 7.57:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #305A64 | 2.77:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #305A64 text on white | 7.57:1 | AAA | Lc 86.2 | Fine for body text |
| #305A64 text on black | 2.77:1 | Fails | Lc -15.9 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#ACC6CC
oklch(80.9% 0.029 213.2)
-
Step 400
400
#80A8B3
oklch(70.6% 0.046 216.5)
-
Step 500
500
#5E93A0
oklch(63.1% 0.059 215)
-
Step 600
600
#437D8B
oklch(55.6% 0.064 215.3)
-
Step 700
700
#346976
oklch(49% 0.06 215.8)
-
Step 800
800 (this color)
#305A64
oklch(44.1% 0.05 214.9)
-
Step 900
900
#28474E
oklch(37.7% 0.039 213.7)
-
Step 950
950
#182A2E
oklch(27.1% 0.025 213.2)
#305A64 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) | #535765 | 0.045 |
| Deuteranopia (no green cones) | #4B5164 | 0.042 |
| Tritanopia (no blue cones) | #135E5D | 0.029 |
| Achromatopsia (no color) | #545454 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305A64
#305A64
oklch(44.1% 0.05 214.9)
- #6B4940
#6B4940
oklch(44.1% 0.049 35.4)
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 #305A64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.028
- YInMn Blue #415A77 ΔE 0.040
- Deep Teal #00555A ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.044
- Dark Aqua #05696B ΔE 0.048
- Dusty Grape #545775 ΔE 0.058
- Slate #516572 ΔE 0.059
Use #305A64 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.