#345E71
Closest named color: YInMn Blue (#415A77). oklch(45.9% 0.056 229), rgb(52, 94, 113).
Aa
White text reads best on this color (7.03:1).
About this color
#345E71 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.056 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.023 away. White text reads best on it, at 7.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #345E71 |
| RGB | rgb(52, 94, 113) |
| HSL | hsl(199, 37%, 32%) |
| OKLCH | oklch(45.9% 0.056 229) |
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 #345E71 | 7.03:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #345E71 | 2.98:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #345E71 text on white | 7.03:1 | AAA | Lc 84.3 | Fine for body text |
| #345E71 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 700.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE1
oklch(88.4% 0.015 229)
-
Step 300
300
#AFC4CF
oklch(80.8% 0.028 230.4)
-
Step 400
400
#85A6B7
oklch(70.6% 0.044 230.5)
-
Step 500
500
#6690A5
oklch(63% 0.056 230.4)
-
Step 600
600
#4C7A90
oklch(55.5% 0.061 229.9)
-
Step 700
700 (this color)
#345E71
oklch(45.9% 0.056 229)
-
Step 800
800
#335463
oklch(42.7% 0.046 228.6)
-
Step 900
900
#2D4551
oklch(37.6% 0.036 230.6)
-
Step 950
950
#1B292F
oklch(27.1% 0.022 226.4)
#345E71 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) | #545D72 | 0.040 |
| Deuteranopia (no green cones) | #4B5671 | 0.035 |
| Tritanopia (no blue cones) | #106364 | 0.040 |
| Achromatopsia (no color) | #595959 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345E71
#345E71
oklch(45.9% 0.056 229)
- #724E3C
#724E3C
oklch(45.9% 0.056 47.4)
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 #345E71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.023
- Petrol #005F6A ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.044
- Slate #516572 ΔE 0.044
- Dark Aqua #05696B ΔE 0.045
- Denim #3B638C ΔE 0.045
- Dusty Grape #545775 ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.055
Use #345E71 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.