#345E70
Closest named color: YInMn Blue (#415A77). oklch(45.9% 0.055 227.6), rgb(52, 94, 112).
Aa
White text reads best on this color (7.04:1).
About this color
#345E70 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.055 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.024 away. White text reads best on it, at 7.04:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.98:1 |
| White text | 7.04:1 |
Values
| HEX | #345E70 |
| RGB | rgb(52, 94, 112) |
| HSL | hsl(198, 37%, 32%) |
| OKLCH | oklch(45.9% 0.055 227.6) |
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 #345E70 | 7.04:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #345E70 | 2.98:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #345E70 text on white | 7.04:1 | AAA | Lc 84.3 | Fine for body text |
| #345E70 text on black | 2.98:1 | Fails | Lc -17.7 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CEDCE2
oklch(88.6% 0.017 225.2)
-
Step 300
300
#ACC5D1
oklch(80.9% 0.032 228.3)
-
Step 400
400
#7FA8BA
oklch(70.8% 0.052 226.7)
-
Step 500
500
#5D92A9
oklch(63.2% 0.066 227.3)
-
Step 600
600
#417C94
oklch(55.6% 0.072 226.8)
-
Step 700
700
#33687E
oklch(49% 0.066 227.6)
-
Step 800
800 (this color)
#345E70
oklch(45.9% 0.055 227.6)
-
Step 900
900
#274654
oklch(37.6% 0.044 228.8)
-
Step 950
950
#182931
oklch(27% 0.027 229.2)
#345E70 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) | #555C71 | 0.042 |
| Deuteranopia (no green cones) | #4C5670 | 0.036 |
| Tritanopia (no blue cones) | #116364 | 0.039 |
| Achromatopsia (no color) | #595959 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345E70
#345E70
oklch(45.9% 0.055 227.6)
- #724E3D
#724E3D
oklch(45.9% 0.056 46.2)
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 #345E70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.024
- Petrol #005F6A ΔE 0.034
- Slate #516572 ΔE 0.044
- Dark Aqua #05696B ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.045
- Dusty Grape #545775 ΔE 0.047
- Denim #3B638C ΔE 0.047
- Dark Green Blue #1F6357 ΔE 0.054
Use #345E70 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.