#345C69
Closest named color: Petrol (#005F6A). oklch(45.1% 0.05 220.9), rgb(52, 92, 105).
Aa
White text reads best on this color (7.28:1).
About this color
#345C69 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.050 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.031 away. White text reads best on it, at 7.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.88:1 |
| White text | 7.28:1 |
Values
| HEX | #345C69 |
| RGB | rgb(52, 92, 105) |
| HSL | hsl(195, 34%, 31%) |
| OKLCH | oklch(45.1% 0.05 220.9) |
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 #345C69 | 7.28:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #345C69 | 2.88:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #345C69 text on white | 7.28:1 | AAA | Lc 85.2 | Fine for body text |
| #345C69 text on black | 2.88:1 | Fails | Lc -16.8 | 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
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE1
oklch(88.5% 0.017 221.1)
-
Step 300
300
#ADC5CE
oklch(80.8% 0.029 222.4)
-
Step 400
400
#81A8B5
oklch(70.7% 0.046 220.3)
-
Step 500
500
#6092A3
oklch(63.1% 0.059 221.4)
-
Step 600
600
#457C8E
oklch(55.6% 0.064 221.3)
-
Step 700
700
#366979
oklch(49.2% 0.06 220.6)
-
Step 800
800 (this color)
#345C69
oklch(45.1% 0.05 220.9)
-
Step 900
900
#294650
oklch(37.6% 0.039 222)
-
Step 950
950
#19292F
oklch(26.9% 0.024 223.4)
#345C69 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) | #545A6A | 0.042 |
| Deuteranopia (no green cones) | #4C5469 | 0.037 |
| Tritanopia (no blue cones) | #196060 | 0.032 |
| Achromatopsia (no color) | #565656 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345C69
#345C69
oklch(45.1% 0.05 220.9)
- #6E4C40
#6E4C40
oklch(45.1% 0.05 40.3)
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 #345C69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.031
- YInMn Blue #415A77 ΔE 0.031
- Dark Aqua #05696B ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.047
- Slate #516572 ΔE 0.049
- Deep Teal #00555A ΔE 0.050
- Dusty Grape #545775 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.053
Use #345C69 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.