#345F7F
Closest named color: YInMn Blue (#415A77). oklch(46.9% 0.071 242.5), rgb(52, 95, 127).
Aa
White text reads best on this color (6.79:1).
About this color
#345F7F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.071 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.020 away. White text reads best on it, at 6.79:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.08:1 |
| White text | 6.79:1 |
Values
| HEX | #345F7F |
| RGB | rgb(52, 95, 127) |
| HSL | hsl(206, 42%, 35%) |
| OKLCH | oklch(46.9% 0.071 242.5) |
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 #345F7F | 6.79:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #345F7F | 3.08:1 | AA large text | Lc 20.7 | Dividers and decoration only |
| #345F7F text on white | 6.79:1 | AA | Lc 83.3 | Fine for body text |
| #345F7F text on black | 3.08:1 | AA large text | Lc -18.6 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CFDBE5
oklch(88.5% 0.019 243)
-
Step 300
300
#AEC4D5
oklch(80.9% 0.034 241.2)
-
Step 400
400
#83A5C0
oklch(70.6% 0.055 242.5)
-
Step 500
500
#638FB1
oklch(63.1% 0.07 242.4)
-
Step 600
600
#49799C
oklch(55.7% 0.076 241.6)
-
Step 700
700 (this color)
#345F7F
oklch(46.9% 0.071 242.5)
-
Step 800
800
#31536D
oklch(42.8% 0.059 242.8)
-
Step 900
900
#2B4558
oklch(37.8% 0.046 241.2)
-
Step 950
950
#1A2834
oklch(27% 0.03 245.1)
#345F7F 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) | #515F80 | 0.035 |
| Deuteranopia (no green cones) | #47587E | 0.028 |
| Tritanopia (no blue cones) | #00676A | 0.057 |
| Achromatopsia (no color) | #5B5B5B | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345F7F
#345F7F
oklch(46.9% 0.071 242.5)
- #77512E
#77512E
oklch(46.9% 0.071 62.3)
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 #345F7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.020
- Denim #3B638C ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.025
- Denim Blue #3B5B92 ΔE 0.037
- Peacock Blue #016795 ΔE 0.042
- Dusky Blue #475F94 ΔE 0.043
- Dusty Grape #545775 ΔE 0.044
- Dusk #4E5481 ΔE 0.044
Use #345F7F 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.