#305E6E
Closest named color: Petrol (#005F6A). oklch(45.6% 0.057 223), rgb(48, 94, 110).
Aa
White text reads best on this color (7.11:1).
About this color
#305E6E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.057 and its hue 223°. 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 7.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.95:1 |
| White text | 7.11:1 |
Values
| HEX | #305E6E |
| RGB | rgb(48, 94, 110) |
| HSL | hsl(195, 39%, 31%) |
| OKLCH | oklch(45.6% 0.057 223) |
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 #305E6E | 7.11:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #305E6E | 2.95:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #305E6E text on white | 7.11:1 | AAA | Lc 84.5 | Fine for body text |
| #305E6E text on black | 2.95:1 | Fails | Lc -17.4 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEE
oklch(93.5% 0.009 222.1)
-
Step 200
200
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#AAC6D0
oklch(80.9% 0.033 221.4)
-
Step 400
400
#7CA8B9
oklch(70.6% 0.053 223.8)
-
Step 500
500
#5993A7
oklch(63.1% 0.068 222.1)
-
Step 600
600
#3D7D93
oklch(55.7% 0.074 223.1)
-
Step 700
700
#2E697D
oklch(49% 0.069 223.2)
-
Step 800
800 (this color)
#305E6E
oklch(45.6% 0.057 223)
-
Step 900
900
#254753
oklch(37.7% 0.045 223)
-
Step 950
950
#162A30
oklch(27.1% 0.028 219)
#305E6E 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) | #555C6F | 0.046 |
| Deuteranopia (no green cones) | #4C556E | 0.041 |
| Tritanopia (no blue cones) | #026363 | 0.038 |
| Achromatopsia (no color) | #585858 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305E6E
#305E6E
oklch(45.6% 0.057 223)
- #724D3D
#724D3D
oklch(45.7% 0.056 44.2)
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 #305E6E, 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 0.029
- Dark Aqua #05696B ΔE 0.041
- Slate #516572 ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.049
- Denim #3B638C ΔE 0.051
- Dusty Grape #545775 ΔE 0.052
Use #305E6E 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.